The four sepals are arranged symmetrically, an outer median and an inner lateral pair.
The ventral region of the thoracic skeleton is complex, each segment usually possessing a median sternum with paired episterna (in front) and epimera (behind).
Most of the Chrysomelidae are metallic in colour and convex in form; in some the head is concealed beneath the prothorax, and the so-called "tortoise" beetles (Cassidinae) have the elytra raised into a prominent median ridge.
(Lankester.) x, y, The median antero-posterior axis.
The median and posterior extension of the body of the sternum is a direct outgrowth of the latter, therefore FIG.
127 ff.) only mentions the treason of the Median general Harpagus and the defeat and captivity of Astyages.
8, it was the simpler Persian dress, not the Median.) A discontent began to work among the Battle of Issus.
The Pasargadian kings of Anshan were vassals of the Median empire.
The majority of birds possess a pair of internal tympaniform membranes forming the inner or median walls of the bronchi, which are there furnished with semi-rings only.
Radula with a median tooth and a single FIG.
He united all the Median tribes, and ruled fifty-three years (c. 699-647 B.C.), though perhaps, as G.
Towards the north-west it borders on the Median district of Paraetacene (about Isfahan); towards the north and north-east it soon passes into the great desert, of which only the oasis of Yezd (Isatichai in Ptolem.
Soon after the conquest of the Median empire, Cyrus was attacked by a coalition of the other powers of the East, Babylon, Egypt and Lydia, joined by Sparta, the greatest military power of Greece.
In a dextral Gastropod the shell is coiled in a right-handed spiral from apex to mouth, and the spiral also projects to the right of the median plane of the animal.
A little south of Samarra are found remains of the Median Wall, which stretched south-west towards the Euphrates near Sahlawych, marking the edge of the Babylonian alluvial plain.
The head is seen in front resting on the foot and carrying a median non-retractile snout or rostrum, and a pair of cephalic tentacles at the base of each of which is an eye.
The testis t occupies a median position in the coiled visceral mass.
B, Sole of the foot of Pyrula tuba, to show a, the pore usually said to be " aquiferous " but probably the orifice of a gland; b, median line of foot.
At Ecbatana new masses of treasure were seized, but when once the necessary measures which its disposal and the occupation of the Median capital entailed were taken, Alexander continued the pursuit.
Rawlinson supposed, the fifty-three years of his reign are exchanged by mistake with the twenty-two years of his son Phraortes, under whom the Median conquests began.
Radula with a median tooth and three teeth on each side of it.
The spiraculum is median and opens far back, in front of the vent.
A nervous system has been shown to exist in many species, and consists of a perioesophageal ring giving off usually six nerves which run forwards and backwards along the lateral and median lines; these are connected by numerous fine, circular threads in the sub-cuticle.
k antero-postero median section 6, 7, with following additions.
So it seems that the dynasty, which more than half a century later succeeded in throwing off the Assyrian yoke and founded the Median empire, was derived from this Dayukku, and that his name was thus introduced into the Median traditions, which contrary to history considered him as founder of the kingdom.
The median lacuna no longer exists, but is represented by a dorsal and ventral sinus.
a membranous, or ossified, tube which rises from a pneumatic foramen in the os articulare, on the median side of the articulation, and passes upwards between the quadrate and lateral occipital bone, opening into the cavity of the middle ear.
The ventral portion of the neck is formed by the strong crista inferior, on the median side of which is the deep fosses subtrochanterica by which air sacs enter the humerus.
The ambiens muscle, long and spindle-shaped, lying immediately beneath the skin, extending from the pectineal process or ilio-pubic spine to the knee, is the most median of the muscles of the thigh.
The clavicles, when united, as usual, form the furcula; mostly the distal median portion is drawn out into a hypocleidium of various shape.
1, Bd) are very intimately fused together to form what is called the "lower lip" or labium, a firm transverse plate representing the fused basal portions of the maxillae, which may carry a small median "ligula," representing apparently the fused inner maxillary lobes, a pair of paraglossae (outer maxillary lobes), and a pair of palps.
This orifice is the spiraculum, which is lateral, on the left side of the body, in most tadpoles, but median, on the breast or belly, in those of the Discoglossidae and of some of the Engystomatidae.
The orbito-sphenoids diverge only posteriorly, otherwise they are practically unpaired and form the median interorbital septum, which is very large in correlation with the extraordinary size of the eyeballs.
Ancistromesus, radula with median central tooth.
Radula narrow with one lateral tooth on each side, and one median tooth or none.
The forebrain forms the bulk of the whole brain, but the large size of the hemispheres is due to the greater development of the basal and lateral portions (pedunculi cerebri and corpora striata), while the pallium (the portion external to the lateral ventricles) is thin, and restricted to the median side of each hemisphere.
At this fold the median nervure stops and is joined by a cross nervure to the radial, which can be distinguished throughout its length from the subcostal.
(Formula, x.l.x.) radula has a number of uniform teeth on each side of the median tooth in each transverse row.
The median bundles of the trace are typically the largest, and at any given level of the stem the bundles destined for the next leaf above are as a whole larger than the others which are destined to supply higher leaves.
7 6 5 ff., is a mixture of Greek traditions with a few oriental elements; here the first king is Medos (the Median empire); his nameless son is succeeded by Cyrus, a blessed ruler, beloved by the gods, who gave peace to all his friends and conquered Lydia, Phrygia, Ionia.
(2) The two carotids are fused into one carotis conjuncta, imbedded in a special median osseous semicanal of the vertebrae; e.g.
In addition to the median lacuna there are two lateral lacunae, one upon each side.
12 and 13 are shown the spermathecae of the genera Hyperiodrilus and Heliodrilus, which are simple sacs ending blindly as in other earthworms, but of which there is only one median opening in the thirteenth segment or in the eleventh.
Between them arises a median crest, which varies much in extent and composition, and is of considerable taxonomic value.
Small or median renal organ.
The femur often possesses a well visible pneumatic foramen on the median side of the proximal end of its shaft.
Close to a transverse fold near the base of the wing, the median nervure divides into branches which extend to the wing-margin; there is a second transverse fold near the tip of the wing, and cross nervures are altogether wanting.
From the 6th century onwards their empire, then known as Median, began to expand at the expense of the surrounding states.
In favour of regarding the vascular system as totally absent, is the fact that the median coelomic channels contain no dorsal and ventral vessel.
As an example of the former it has been shown (Beddard) that a large median sac in Lybiodrilus is at first freely open to the coelom, that it later becomes shut off from the same, that it then acquires an external orifice, and, finally, that it encloses the ovary or ovaries, between which and the exterior a passage is thus effected.
The order is now divided into two sub-orders: the Taenioglossa, in which there are three teeth on each side of the median tooth of the radula, and the Stenoglossa, in which there is only one tooth on each side of the median tooth.
The most important of these opens by the ventral pedal pore, situated in the median line in the anterior half of the foot.
The single gill-plume br lies to the left of the median line in natural position.
Cephalic shield ending posteriorly in a median point; shell internal, largely membranous; no radula or stomachal plates.
animals, with shell coiled h, Median dorsal spine.
d, Median web connecting these.
h, The median spine of the shell.
d, Median fold of same.
f, Median portion of the pn, Pteropodial lobe of the h, Heart.
In specialized biting insects, such as beetles (Coleo C ptera), the labium tends to become a hard transverse plate bearing the pair of palps, a median structure - known as the ligula - formed of the conjoined laciniae, and a pair of small rounded processes - the reduced galeae - often called the " paraglossae," a term better avoided since it has been applied also to the maxillulae of Aptera, entirety different structures.
A median process, known as the hypopharynx or tongue, arises from the floor of the mouth in front of the labium, and becomes most variously developed or specialized in different insects.
The fifth (distal) tarsal segment carries a median adhesive pad - the pulvillus - on either side of which is a claw.
3, Then comes the radial - usually 4 the most important nervure of the wing - typically with five branches, and the median with four.
Usually they open into a median vagina, formed by an ectodermal inpushing and lined with chitin.
- Cross section of Embryo of German Cockroach (Phyllo- labrum represent, as already said, an unpaired median outgrowth dromia).
In those insects in which a median terminal appendage exists between the two cerci this is considered to be a prolongation of the eleventh tergite.
- Morphology of an Insect: the embryo of Gryllotalpa, somewhat diagrammatic. The longitudinal segmented band along the middle line represents the early segmentation of the nervous system and the subsequent median field of each sternite; the lateral transverse unshaded bands are the lateral fields of each segment; the shaded areas indicate the more internally placed mesoderm layer.
The median vagina, spermatheca and ejaculatory duct are, on the other hand, formed by ectodermal inpushings.
As regards the struthious birds, they could not be likened to the duck, for in them at no age was there any indication of a single median centre of ossification, as Geoffroy had satisfied himself by his own observations made in Egypt many years before.
These nine theoretical centres or " pieces " L'Herminier deemed to be disposed in three transverse series (rangees), namely the anterior or " prosternal," the middle or " mesosternal " and the posterior or " metasternal " - each series consisting of three portions, one median piece and two side-pieces.
As to the third or posterior series, when it is complete the three constituent pieces are developed almost simultaneously; but its median piece is said often to originate in two, which soon unite, especially when the side-pieces are wanting.
As regards the ducks, L'Herminier agreed with Cuvier that there are commonly only two centres of ossification - the side-pieces of the middle series; but as these grow to meet one another a distinct median " noyau," also of the same series, sometimes appears, which soon forms a connexion with each of them.
In the ostrich and its allies no trace of this median centre of ossification ever occurs; but with these exceptions its existence is invariable in all other birds.
In others there is an approximation of the lateral stems towards the median ventral line (Drepanophorus); in a genus of Heteronemertines (Langia), on the other hand, an arrangement occurs by which the longitudinal stems are no longer lateral, but have more or less approached each other dorsally.
In the Metanemertini there is a curious diverticulum of the intestine which stretches forward in the median line, ventral to the socalled stomach.
The chief vessels are three longitudinal trunks, a median and two lateral ones.
The median dorsal vessel, however, remains distinct, but instead of continuing its course beneath the proboscidian sheath it is first enclosed by the ventral musculature of this organ, and still farther forwards it even bulges out longitudinally into the cavity of the sheath.
A median longitudinal vessel and transverse connecting trunks have not as yet been detected.
They are cylindrical worm-like animals, with a median anterior mouth quite devoid of any armature or tentacles.
Each carpel becomes divided by a median constriction in four portions, each containing one ovule; the style springs from the centre of the group of four divisions.
If these prove the name Mazdaka to have formed part of Median proper names in the year 715 B.C., Eduard Meyer (v.
Probably he emanated from the old school of Median Magi, and appeared first in Media as the prophet of a new faith, but met with sacerdotal opposition, and turned his steps eastward.
In the tapirs and many extinct forms the fifth toe also remains on the fore-limb, but its presence does not interfere with the symmetrical arrangement of the remainder of the foot on each side of the median line of the third or middle digit.
A large number of representatives of the group are known from both the Old and the New World; specialization displaying itself in the later ones in the development of dermal horns over the nasal bones, either in laterally placed pairs as in some of the early forms, or in the median line, either single or double.
(wall or 8, Median valley.
One or two median horns on the face.
The proboscis-pores are highly variable, and frequently only one is present, that on the left side; sometimes the pore-canals of the proboscis unite to open by a common median orifice, and sometimes their communication with the probosciscoelom appears to be occluded, and finally the pore-canals may be quite vestigial.
An important feature is the occurrence in some species (Ptychoderidae) of paired longitudinal pleural or lateral folds of the body which are mobile, and can be approximated at their free edges so as to close in the dorsal surface, embracing both the median dorsal nerve-tract and the branchial grooves with the gill-pores, so as to form a temporary peri-branchial and medullary tube, open behind where the folds cease.
In Magellania [Waldheimia] it is elongated and reflected; the hinge-plate large, with four depressions, under which originates a median septum, which extends more or less into the interior of the shell (figs.
been bisected in the median plane.
The intestine is slung by a median dorsal and ventral mesentery which divides the body cavity into two symmetrically shaped halves; it is " stayed " by two transverse septa, the anterior or gastroparietal band running from the stomach to the body wall and the posterior or ileoparietal band running from the intestine to the body wall.
The heart gives off posteriorly a second median vessel which divides almost at once into a right and a left half, each of which again divides into two vessels which run to the dorsal and ventral mantles respectively.
The accessory divaricators are, according to the same authority, a pair of small muscles which have their ends attached to the ventral valve, one on each side of the median line, a little behind the united basis of the adductors, and again to the extreme point of the cardinal process.
wall median in Thecidea, 15.
Median pallial nerve of dorsal each side, just below the lobe of mantle.
About this stage the larvae leave the broodpouch, which is a lateral or median cavity in the body of the female, and lead a free swimming life in the ocean.
The ovary is double, and the oviducts open by a median ventral pore about the middle of the body; in this region there is a second swelling.
The towns of the ancient province of Africa which received coloniae were very numerous: Abitensis (civitas Avittensis Bibba), Bisica Lucana (Tastour), Byzacium, Capsa (Gafsa), Carthage, Cuina, Curubis (Kurba), Hadrumetum (Susa), Hippo Diarrhytus or Zarytus (Bizerta), Leptis Magna (Lebda), Maxula (Ghades, Rades or Gades),Neapolis(Nabel, Nebeul), Oea (Tripoli), Sabrata (Zoara), colonic Scillitana (Ghasrin), Sufes (Sbiba), Tacape (Gabes),Thaenae or Thenae (Tina), Thelepte (Medinet Kedima), Thugga (Dugga), Thuburbo maius (Kasbat), Thysdrus (El Jem), Uthina (Wadna) and Vallis (Median).
p, placenta; o, ovules; s, suture, or median line of carpel.
1 with the addition of NF, neural fossa protecting the aggregated ganglia of the central nervous system; PVP, left posterior ventral process; PMP, posterior median process.
imp, Lateral median process (same as ALR and PLR of fig.
The cerebral mass is in Limulus more easily separated by dissection as a median lobe distinct from the laterally placed ganglia of the cheliceral somite than is the case in Scorpio, but the relations are practically the same in the two forms. Formerly it was supposed that in Limulus both the chelicerae and the next following pair of appendages were prosthomerous, as in Crustacea, but the dissections of Alphonse Milne-Edwards (6) demonstrated VI FIG.
M, Mouth behind the oval median camerostome.
Possibly, however, an investigation of the development of the median eyes of some Crustacea(Apus,Palaemon)may prove them to be diplostichous in origin.
We know that such a lateral position of the nerve cords preceded the median position in both Arthropoda and Chaetopoda.
I and 2) correspond in the two animals, and the median lateral process imp of the scorpion represents the tendinous outgrowths ALR, PLR of Limulus.
is similar to that in Limulus, whilst the imbricate triangular pieces of the posterior median region resemble the similarlyplaced structures of Limulus in a striking manner.
The blood is brought to the respiratory organs in both cases by a great venous collecting sinus having a ventral median position.
Compound lateral eyes present; median eyes wanting.
Median eyes are present, which are monomeniscous, with distinct retinal and corneagenous cell-layers, and placed centrally on the prosoma.
[Observe the powerful gnathobases of the sixth pair of prosomatic limbs and the median plates behind m.
- Prosoma covered by a single dorsal shield, bearing typically median and lateral eyes; its sternal elements reduced to a single plate lodged between or behind the basal segments of the 5th and 6th pairs of appendages.
two in Geralinura), bearing median and lateral eyes.
- Prosoma wider than long, covered above by a single shield bearing median and lateral eyes, which have diplostichous ommatea.
- Prosoma covered with a single shield and typically furnished with median and lateral eyes of diplostichous structure, as in the Amblypygi.
b, Cephalic plate with median eye.
Appendages of the 3rd, 4th, 5th and 6th pairs similar in form and function, tipped with two claws, their basal segments in contact in the median ventral line.
As trousers were distinctively Persian - though the Persians had the reputation for borrowing Median and foreign dress (Herod.
The C.P. of water lines passing through a fixed point lies on a straight line, the antipolar of the point; and thus the core of a triangle is a similar triangle of one quarter the size, and the core of a parallelogram is another parallelogram, the diagonals of which are the middle third of the median lines.
14.8), Kar-Duniyas may have represented the Median Wall of Xenophon (Anab.
In them a ventral surface containing the usually median male and female genital apertures is generally distinguishable from the smooth FIG.
Usually this aperture is median, but occasionally asymmetrical.
In most endoparasitic Trematodes the accessory gonopore is a median and dorsal structure.
If successful, the larva throws off its cilia and develops a dorsal papilla, a median ventral sucker and an additional pair of lateral suckers.
(vi.) In Microporella the opening of the compensation-sac has become separated from the operculum by calcareous matter, and is known as the "median pore."
The alimentary canal persists and revolves in the median plane through an angle of 180°, accompanied by part of the larval vestibule, the space formed by the retra^tion of the oral surface.
vast majority of snakes are further characterized by having the right and left halves of the under-jaws connected by an elastic band; a median, longitudinal furrow in the skin below and behind the chin; the whole palatal apparatus is but loosely connected with the skull, nowhere articulating with it.
With a median longitudinal groove between the shields of the skin: Colubridae.
The;sakis, which form the genus Pithecia, are specially characterized by their long and generally bushy tails, distinct whiskers and beard, and the usually elongated hair on the crown of the head, which may either radiate from a point in the centre, or be divided by a median parting.
They differ from all the forms already noticed in being shrubby and epiphytal in habit, and in having the branches compressed and dilated so as to resemble thick fleshy leaves, with a strong median axis and rounded woody base.
The true first segment, which undergoes a more or less complete fusion with the thorax is known as the " median segment " or propodeum.
marginal; 7, 8, 9, median or 5.
- Median section through midbody of female Red Ant (Myrmica rubra).
The main median nervure, and usually also the sub-costal become united with the radial, while the branches of radial, median and cubital nervures pursuing a transverse or recurrent course across the wing, divide its area into a number of areolets or " cells," that are of importance in classification.
But the most natural division is obtained by the separation of the saw-flies as a primitive sub-order, characterized by the imperfect union of the first abdominal segment with the thorax, and by the broad base of the abdomen, so that there is no median constriction or " waist," and by the presence of thoracic legs - usually also of abdominal pro-legs - in the larva.
A few small families such as the Evaniidae and the Stephanidae are included here, but the vast majority of the group fall into two large families, the Ichneumonidae and the Braconidae, the former distinguished by the presence of two median (or discoidal) cells in the fore-wing (figs.
Latreille, Familles naturelles du regne animal (Paris, 1825), who recognized the nature of the " median segment."
The piercing portions of the latter - representing their inner lobes or laciniaelie median to the mandibular piercers in the natural position of the organs.
The " median ordinate " is the ordinate which divides the area of the trapezette into two equal portions.
It arises mainly in statistics, when the ordinate of the trapezette represents the relative frequency of occurrence of the magnitude represented by the abscissa x; the magnitude of the abscissa corresponding to the median ordinate is then the " median value of x."
Geranium, Cardamine pratensis, mallows, Rubus, Oxalis, Epilobium, &c., but many species show more or less well-marked median symmetry (zygomorphism) as Euphrasia, Orchis, thyme, &c., and red, blue and violet are the usual colours.
Considering the imprisonment of the ostracod body within the valves, it is more surprising that the Asteropidae and Cypridinidae should have a pair of compound and sometimes large eyes, in addition to the e median organ at the base of I the " frontal tentacle," than 6 that other members of the group should be limited to P that median organ of sight, or have no eyes at all.
The median eye when present F IG.
There is a broad dark median dorsal stripe.
2, I) and its allies, the trochus being oval with two median gaps, the cingulum, more delicate, and complete.
a, malleate, with crop: this is followed enlarged view of malleus above - the by the crop-gizzard, Y-shaped incus consists of a short median also ciliated except fulcrum bearing two large rami, each of behind, where it is which is in contact with a stout malleus hardened into a set consisting of a toothed uncus carried on a of articulated sclerites long manubrium; b, sub-malleate, with (trophi) to form the enlarged view of malleus - the manubria gizzard or mastax.
are twice as long as the 3to 5-toothed Thus the crop-gizzard unci; c, virgate - mallei rod-like, manubria has the same comand fulcrum very long, unci Ior 2-toothed; bination of structures d forcipate - rami large and used as a foras we find in the ceps, mallei rod-like, unci pointed or evanstomach of higher escent; e, incudate - stout fulcrum, rami Crustacea, with which formingaforceps, mallei evanescent; f, unwe may call it homocinate - unci large, 2-toothed, manubria plastic. The trophi evanescent, incus slender; g, ramate - rami are (I) a median incus subquadrantic, fulcrum rudimentary, manY - shaped, with the ubria evanescent; h,malleo-ramate - mallei (fulcrum) distal fastened by their unci to the rami, manubria foot and the arms (rami) looped, rami large and fulcrum slender.
A, lateral surface view of an adult female: a, median ventral appendage; b, median dorsal appendage; c, distal ventro-lateral appendage; d, dorso-lateral appendage; f, dorsal antenna; g," chin "; x', cephalotroch.
H, enlarged view of the median ventral appendage.
But the proximal pair are often fused into a single median antenna (supplied, however, by two nerves), and in one case at least the distal pair may be similarly fused.
They are six in number, median, ventral and dorsal, and two unequal lateral pairs.
Each pair has a single insertion on the inner wall - the one pair near the free extremity of the limb, the other near its attachment; the bands run up, one of each pair on each side, and run right round the body forming an incomplete muscular girdle, the ends approximating in the median line.
Above this point springs the large median dorsal limb, which terminates in groups of long setae.
In Asplanchnaceae the germary is median, continuous at the distal end with the middle of the transverse horseshoe-shaped vitellary.
The extraing to foot of rotifers; at, median blastoporic opening of antenna, united by a nerve to br, brain the cloaca leads us to a (letter omitted in B); bl, bladder, re ver y different view, which ceiving ramified kidney in B, C, D; finds negative support f, foot, and f.g, its cement-gland;.
- a, Microcodon clavus, showing corona, lateral antennae and jointed foot; b, Rhinops vitrea, corona from below, showing proboscidiform extension containing eyes; c, Philodina megalotrocha; d, head of Rotifer macroceros, postero-ventral view, showing lobes of corona, and antero-dorsal median antenna, telescopic with setae; e, Rotifer (Actinurus) neptunius, showing head with retracted corona, and protruded dorsal proboscis bearing median antenna, and telescopic foot with toes and spurs; f.
(b) Triarthridae; body with a pair of long cervical spines pointing distally and serving for leaping movements or to extend the body and make it too big for small enemies to swallow; Pedetes Gosse (no median spines); Triarthra Ehr., one postero-ventral spine; Tetramastix Zacharias, two unequal median spines.
They are also well marked on the cephalic shield, the tergal elements being represented by a median axial elevated area showing indistinct signs of segmentation, and a lateral unsegmented plate, the gena, which carries the eyes.
The latter is further remarkable for having the median area of the head-shield, the flabellum, produced into an anteriorly directed spike.
bairdi, with brownish median tail-coverts, extends over nearly all North America, breeding towards the north.
Vital Statistics, 1900.The median age of the aggregate population of 1900that is, the age that divides the population into halveswas 22.85 years.
The median age of the foreign-born in 1900 was 38.42 years.
The median age of the population of cities of 25,000 or more inhabitants was 355 years greater than that of the inhabitants of smaller urban centres and rural districts, owing probably in the main to the movement of middle-aged native and foreign adults to urban centres, and the higher birth-rate of the rural, districts.
The median age of the aggregate population is highest in New England and the Pacific states, lowest in the South, and in the North Central about equal to the countrys average.
86 Chaldaean kings 34,080 or 33,091 years 2.8 Median „ 224 3.
The mantle-skirt is always long, and hides the rest of the animal from view, its dependent margins meeting in the middle line below the ventral surface when the animal is retracted; it is, as it were, slit in the median line before and behind so as to form two flaps, a right and a left; on these the right and the left calcareous valves of the shell are borne respectively, connected by an uncalcified part of the shell called the ligament.
The alimentary canal keeps very nearly to the median vertical plane whilst exhibiting a number of flexures and loopings in this plane.
ab, ac, ad, Three pit-like depressions in the median line of the foot supposed by some writers to be pores admitting water into the vascular system.
It is to be remembered that the whole of the cuticular hard product produced on the dorsal surface and on the mantle-flaps is to be regarded as the " shell," of which a median band-like area, the ligament, usually remains uncalcified, so as to result in the production of two valves united by the elastic ligament.
i (5), one of the labial tentacles n is also thrown back to show the mouth w, and the two left gill-plates are reflected to show the gill-plates of the right side (rr, rq) projecting behind the foot, the inner or median plate of each side being united by concrescence to its fellow of the opposite side along a continuous line (aa).
24, in optical median section, showing the invaginated cells hy which form the arch-enteron, and the mesoblastic cells me which are budded off from the surface of the mass hy, and apply themselves to the inner surface of the epiblastic cell-layer cp. C, The same embryo focused so as to show the mesoblastic cells which immediately underlie the outer cell-layer.
In Yoldia and Nucula proxima the test consists of five rows of flattened cells, the three median rows bearing circlets of long cilia.
the radial and the median.
When wings are present the front pair are much larger than the hind pair, and the neuration is remarkable for the concresence of the median with the After Marlatt, Bull.
All the wings are of firm, glassy texture, and very complex in their neuration; a remarkable and unique feature is that a branch of the radius (the radial sector) crosses the median nervure, while, by the development of multitudinous cross-nervules, the wing-area becomes divided into an immense number of small areolets.
Structurally the Neuroptera are distinguished by elongate feelers, a large, free prothorax, a labium with the inner lobes of the second maxillae fused together to form a median ligula, membranous, net-veined wings without hairy covering, those of the two pairs being usually alike, the absence of abdominal cerci, and the presence of six or eight Malpighian tubes.
102) he was the son of Deioces, and began the Median conquests.
It is often described as formed of three lobes two lateral and a median or posterior, but careful sections and recent research throw doubt on the existence of the last.
The levatores ani have been separated along the median raphe, and drawn outwards.
- Sagittal Median Section of Bladder, Prostate and Rectum, showing one of the ejaculatory ducts.
The skin of the penis forms a fold which covers the glans and is known as the prepuce or foreskin; when this is drawn back a median fold, the frenuluni praeputii, is seen running to just below the meatus.
It consists of a median ventricle with muscular walls and a cavity traversed by muscular strands.
Frequently also from this junction of the ovaria and the vitellaria a median tube is given off which either opens to the exterior or into the intestine, in the latter case it appears to serve as.
Aristomenes retired to Ialysus in Rhodes, where Damagetus, his son-in-law, was king, and died there while planning a journey to Sardis and Ecbatana to seek aid from the Lydian and Median sovereigns (Pausanias iv.
A median mesentery running dorsoventrally supports the alimentary canal and is continued behind it into the tail, thus dividing the body cavity into two lateral halves.
The cerebral ganglion also gives off a nerve on each side to a pair of small ganglia, united by a median commissure, which have sunk into and control the muscles of the head.
746) makes the south limit of Mesopotamia the Median wall; Pliny (v.
Meinert, open to the exterior by a median aperture, the terminal part of the duct being single, either by the fusion of the primitive paired ducts or by the suppression of one of them.
In the mouse, ten such centres may be distinguished, arranged symmetrically five on either side of the median plane - a cheek patch, neck patch, shoulder patch, side patch and rump patch.
The head is large, the neck slender, the antennae short and the legs longish, and the appearance of the long stalk-like waist of the ant is produced by a patch of whitish hair on each side of the forepart of the abdomen which has the effect of cutting away the parts of the segments so covered, leaving a narrow dark-coloured median area to represent the waist.
This shield if shaped in such a manner as to resemble closely the body of an ant, the median portion of the shield being deeply constricted in imitation of the waist and the terminal portion sub-globular like the abdomen of the ant.
90, B 390 times, C highly magnified.) A, A vertical median sec- w, Its wall from which tion through a sperproceed sterigmata mogonium imbedded with rod-like sper in the thallus.
The eyes are arranged in rows running diagonally from the median anterior beak.
Each transverse row of teeth of the radula contains 17 teeth, one of which is median, while the second and the fifth on each side are enlarged.
As in other molluscs the coelom is represented by a large pericardial cavity, situated above the intestine posteriorly, and a generative sac which is single and median and situated in front of the pericardium, except in the Nuttalochiton hyadesi, where the gonads are in a similar position, but are paired.
The heart is enclosed in the pericardium, and consists of a median elongated ventricle and a pair of lateral auricles, so that the structure somewhat resembles that in the Lamellibranchiata.
The ventricle leads into a single anterior median aorta.
Ova are developed on the median, spermatozoa on the outer wall of each genital tube.
There is a heart in the pericardium consisting of a median ventricle attached, except in Neomenia, to the dorsal wall of the pericardium, and in Neomenia a pair of auricular ducts returning blood from the gills to the ventricle.
A single median ventral sinus passes backwards to the gills or cloaca.
In front of the buccal mass is a median cerebral ganglion.
There is also in some genera a median retractile sensory papilla on the dorsal posterior surface above the rectum, not covered by the cuticle.
- Aplacophora without distinct ventral groove, with single median unisexual gonad, with differentiated hepatic sac, and with cloacal chamber furnished with two bipectinate gills.
The chief difference is that the gonad or generative portion of the coelom is single and median, opening into the pericardium by a single posterior aperture.
a part of Elam (Susiana), where they ruled as vassals of the Median kings, until Cyrus the Great in 550 B.C. founded the Persian empire.
is the median plane of the second pair the The fraction of leaf; and when the leaves are leaves are placed the circumference arranged alternately on an laterally, and so of the stem exaxis so that their median on.
The size of the angle between the median planes of two consecutive leaves in an alternate arrangement is their divergence; and it is expressed in fractions of the circumference of the axis which is supposed to be a circle.
In Dinophilus there is also only a single pair of genital ducts behind; and in the male there are sperm-sacs and a median penis.
The rest of the head, the neck, throat and lower parts generally are clothed with lanceolate feathers of a pale tawny colour - sometimes so pale as to be nearly white beneath; while the scapulars, back and wing-coverts generally, are of a glossy greyish-black, most of the feathers having a white shaft and a median tawny line.
There is a welldeveloped brain dorsal, to the mouth; this gives off a pair of oesophageal commissures, which surround the oesophagus and unite in a median ventral nerve-cord which runs between the longitudinal muscles to the posterior end of the body.
Lastly there are two species of true crocodiles in America, C. intermedius of the Orinoco, allied to the former, and C. americanus or acutus of the West Indies, Mexico, Central America to Venezuela and Ecuador; its characteristic feature is a median ridge or swelling on the snout, which is rather slender.
seem to end, for the most part, in the grey cortex of the median lobe, some, though not the majority, of them decussating across the median line.
He acquired his surname of Soter, or Saviour, from the Babylonians, whom he delivered from the tyranny of the Median satrap, Timarchus, and is famous in Jewish history for his contests with the Maccabees.
In Fucus vesiculosus they arise in lateral pairs; in Ascophyllum they are single and median; in Macrocystis one vesicle arises at the base of each thallus segment; in Sargassum and Halidrys the vesicles arise on special branches.
To the law that no subsequent transverse division takes place in segments cut off from the apical cell, there seem to be two exceptions: first, the calcareous genus Corallina, in the pliable joints of which intercalated division occurs; and, second, the Nitophylleae, in which, moreover, median longitudinal division of axial cells is said to occur.
Whether Bactria formed part of the Median empire, we do not know; but it was subjugated by Cyrus and from then formed one of the satrapies of the Persian empire.
3), or with a symmetry in the median plane as in Gladiolus.
The ordinate which divides the area of the dotted curve into two equal areas is the median of Galton: it lies in this case nearly at 3.38 glands.
In cases of nearly symmetrical distribution about the mean, the three "types," the mean, the median and the mode, may sensibly coincide.
part 1, p. 41), the mean stature is 66.91 in., the modal 66.96 in., the median lying between the FIG.
Here the mode is at 4.5 petals, the mean at 5.6 petals, the median lying of course between the two.
107) forty years, about 6 2 4-5 8 4 B.C. That he was the real founder of the Median empire is proved by the fact that in Darius's time a Median usurper, Fravartish, pretended to be his offspring (Behistun inscr.
According to Berossus he was allied with Nabopolassar of Babylon, whose son Nebuchadrezzar married Amyitis, the daughter of the Median king (who is wrongly called Astyages).
In a fragmentary letter from an Assyrian governor to King Sargon (about 715 B.C.) about rebellions of Median chieftains, a dynast Uvakshatar (i.e.
Possibly he was an ancestor of the Median king.
There is a median eye on the head.
==Geology== The rock formations of Angola are met with in three distinct regions: (1) the littoral zone, (2) the median zone formed by a series of hills more or less parallel with the coast, (3) the central plateau.
The median zone is composed largely of crystalline rocks with granites and some Palaeozoic unfossiliferous rocks.
ASTYAGES, the last king of the Median empire.
About his reign we know little, as the narrative of Herodotus, which makes Cyrus the grandson of Astyages by his daughter Mandane, is merely a legend; the figure of Harpagus, who as general of the Median army betrays the king to Cyrus, alone seems to contain an historical element, as Harpagus and his family afterwards obtained a high position in the Persian empire.
pp. 29 and 37) and Syncellus (p. 39 6) have preserved, give the name Astyages to the Median king who reigned in the time of the fall of Nineveh (606 B.C.), and became father-in-law of Nebuchadrezzar.
If a+~+7 =0, G is at infinity; if a=~=y, G is at the intersection of the median lines ofthetriangle; jfa:: y=a: b: c,Gisatthecentreofthe inscribed circle.
The atrial region extends from the mouth over about twothirds of the length of the body, terminating at a large median ventral aperture, the atriopore; this is the excurrent orifice for the respiratory current of water and also serves for the evacuation of the generative products.
It is characterized by the presence of a special development of the lophioderm or median fin-system, namely, the ventral fin, which is composed of two portions, a lower keel-like portion, which underlies an upper chambered portion, each chamber containing typically a pair of gelatinous fin rays.
4, 1), which is quite median at its first origin, but, as it grows in length, comes to lie against the right wall of the pharynx.
1, x.); sometimes a median, jointed tail-appendage is also present.
In the Machilidae and Lepismidae (these two families are known as the Ectotrophi) the maxillae are like those of typical biting insects, and there is a median tail-bristle in addition to the paired cerci; while in the Campodeidae and Japygidae (which form the group Entotrophi) the jaws are apparently sunk in the head, through a deep inpushing at the mouth, and there is no median tail-bristle.
polnatorhinus (often incorrectly spelt pomarinus), about the size of a common gull, Larus canus, and presenting, irrespective of sex, two very distinct phases of plumage, one almost wholly sooty-brown, the other particoloured - dark above and white on the breast, the sides of the neck being of a glossy straw-colour, and the lower part of the neck and the sides of the body barred with brown; but a singular feature in the adults of this species is that the two median tail-feathers, which are elongated, have their shaft twisted towards the tip, so that in flight the lower surfaces of their webs are pressed together vertically, giving the bird the appearance of having a disk attached to its tail.
Avvob pos, once in Tobit Aabnpos), a royal Persian or Median name occurring in three of the books of the Old Testament and in one of the books of the Apocrypha.
Towards the end of the body both neural and haemal arches are continued into forked radial cartilages, which support a median fin.
In former times the second language has often been called Scythian, Turanian or Median; but we now know from numerous inscriptions of Susa that it is the language of Elam which was spoken in Susa, the capital of the Persian empire.
Perhaps the most constant and obvious distinction between this species and the next is the arrangement of the stripes on the hinder part of the back, where there are a number of short transverse bands reaching to the median longitudinal dorsal stripe, and unconnected with the uppermost of the broad stripes which pass obliquely across the haunch from the flanks towards the root of the tail.
There is often a median longitudinal stripe under the chest.
There is a strongly marked median longitudinal ventral black stripe, to which the lower ends of the transverse side stripes are usually united, but the dorsal stripe (also strongly marked) is completely isolated in its posterior half, and the uppermost of the broad haunch stripes runs nearly parallel to it.
m.occ., Median occipital.
m.v., Median ventral.
a.m.d., Anterior median dorsal.
p.m.d.,Posterior median dorsal.
They agree with fishes in the possession of median fins, and resemble the large majority of early fishes in their unequal-lobed (heterocercal) tail, but they have no ordinary a.v.l., c., Central.
Sargon penetrated farthest, receiving in 715 nc. the tribute of numerous Median town-princes.
The Medes, then, were an Iranian nation, already occupying in the 9th century B.C. their later home in the centre of the Median highland.
For in the list of Median princes, to which we have already referred, are two bearing the name of Mazdakaevidently after the god Mazda.
101) includes the Magians in his list of Median tribes; and it is probable that they and their teaching reached the Persians from Media.
tains of the east; and there, in addition to several non-Iranian peoples, subdued a few Median tribes.
At that time twenty-eight Median town-lords paid tribute to Nineveh; two years later, (713 B.C.) no fewer than forty-six.
Not till the last years of Assur-bani-pal, on which the extant Assyrian annals are silent, can an independent Median Empire have arisen.
As to the history of this empire, we have an ancient account in Herodotus, which, with a large admixture of the legendary The still contains numerous historical elements, and a Median completely fanciful account from Ctesias, preserved ~mp!re.
Arbaces is then followed by a long list of Median kings all of them fabulous.
Of the Median Empire itself we do not possess a single monument.
The beginnings of the Median monarchy can scarcely go farther back than 640 B.C. To all appearance, the insurrection against Assyria must have prcceeded from the desert tribe of the Manda, mentioned by Sargon: for Nabonidus invariably describes the Median kings as kings of the Manda.
To the east, the Median Empire extended far over Iran, even the Persians owning its sway.
The Persian Empire of the Achaemenids.The balance, however, was disturbed in 553 B.C., when the Persian Cyrus, king of Anshan in Elam (Susiana), revolted against Conques~ his suzerain Astyages, the son of Cyaxares, and o, Cynis three years later defeated him at Pasargadae ~i and Shortly afterwards Astyages was taken prisoner, Cambyses, Ecbatana reduced, and the Median Empire replaced by thi Persian.
Cyrus and hi~ Persians paid little heed to the treaties which the Median kink had concluded with the other powers; and the result was I great coalition against him, embracing Nabonidus of Babylon Amasis of Egypt, Croesus of Lydia, and the Spartans, whosi highly efficient army seemed to the Oriental states of great value In the spiing of 546 B.C., Croesus opened the attack.
piece of gold; the word has nothing to do with the name of Darius), a gold piece of 130 grains (value about 23s.); this being equivalent to 20 silver pieces (Median shekels, at-yXoi) of 86.5 grains (value according to the then fate of silverI33/4 silver to I goldabout is.
They were forced, however, to ackOowledge the suzerainty of Parthia, to which they stood in the same position as the Persians of Cyrus and his forefathers to the Median Empire (cf Strabo xv.
Although we have no record of Median language we cannot regard it as differing to any great ant from the Persian.
There is nothing to justify us in looking the true Median language either in the cuneiform writings of second class or in Zend.
The dentition of the kangaroos, functionally considered, thus consists of sharp-edged incisors, most developed near the median line of the mouth, for the purpose of cropping herbage, and ridged or tuberculated molars for crushing.
The growth of an ordinary bacterium consists in uniform elongation of the rodlet until its length is doubled, followed by division by a median septum, then by the simul- Measure- taneous doubling in length of each daughter cell, again ment of followed by the median division, and soon (figs.
in weight, with the midrib of the leaf they are wrapped in forming a median line on the surface.
7); on the exumbral aspect there are two median ocelli (oc l, oc 2), a distal and a proximal, each of them a vesiculate ocellus with a lens, and on the sides of the rhopalium are two pairs of ocelli without lenses (oc. 1); sometimes also an additional seventh ocellus occurs, a pit-like structure without a lens, either between the two median ocelli, or placed asymmetrically near the median proximal ocellus.
The histological structure oc', oc 2, Distal and proximal median of the Scyphomedusae is in ocelli.
- Vertical section of the Median Distal Ocellus (oc t of the preceding figure) of Charybdaea.
Others have regarded it as representing the fusion of a number of somites, and others again as a " median appendage " or as a pair of appendages fused.
The its muscular coat; g, g, the heart is of the usual Arthro lateral teeth, which when podous type, lying in a more or in use are brought in conless well-defined pericardial blood tact with the sides of the sinus, with which it communi median tooth m; c, c, the cates by valvular openings or muscular coat.
The eyes of Crustacea are of two kinds, the unpaired, median or "nauplius " eye, and the paired compound eyes.
In the Copepoda the median eye may undergo considerable elaboration, and refracting lenses and other accessory structures may be developed in connexion with it.
Siphonodentalium: foot ending in a median disk without a median appendage.
Pulsellum: terminal disk of foot with a median appendage.
32), one of the generals of Sardanapalus, king of Assyria and founder of the Median empire about 830 B.C. But Ctesias's whole history of the Assyrian and Median empires is absolutely fabulous; his Arbaces and his successors are not historical personages.
From the inscriptions of Sargon of Assyria we know one "Arbaku Dynast of Arnashia" as one of forty-five chiefs of Median districts who paid tribute to Sargon in 713 B.C. See MEDIA.
The paired ovaries discharge their products into a median coelemic chamber with lateral branches (C), often called the uterus, from which the ripe ova are discharged by a median dorsal pore into the terminal region of the rectum (cloaca).
From Manyanga the frontier was to follow the Congo up to Stanley Pool, the median line of Stanley Pool, and the Congo again "up to a point to be settled above the river Licona-Nkundja," from which point a line was to be drawn to the 17th degree of longitude east of Greenwich, following as closely as possible the water-parting of the Licona-Nkundja basin.
- Lateral metacarpals as in preceding; antlers (as in the following genera) present only in the male, arising at right angles to the median longitudinal line of the skull, and extending at first in the plane of the forehead, after which, when in their fullest development, they expand into a broad palmation margined with snags.
Antlers arising at acute angles to the median line of the skull (as in the following genera), at first projecting from the plane of the forehead, and then continued upwards nearly in that plane, supported on short pedicles, and furnished with a brow-tine, never regularly forked at first division, but generally of large size, and with not less than three tines; the skull without ridges on the frontals forming the bases of the pedicles of the antlers.
The pistil consists of a single carpel, opposite the pale in the median plane of the spikelet.
The boundary between the United States and Canada runs up the middle of the outlet of the lake and follows a median line approximately to about mid-lake; thence it sweeps northwestward, so as to include Isle Royal within the territory of the United States, and continues near the north shore, to the mouth of Pigeon River, which it follows westward, leaving the whole west end of the lake in United States territory.
The fact that in no other scriptural passage is mention made of any Median ruler between the last Semitic king of Babylon and Cyrus, and the absolute silence of the authoritative ancient authors regarding such a king, make it apparent that the late author of Daniel is again in error in this particular.
There is not only no room in history for this Median king of the Book of Daniel, but it is also highly likely that the interpolation of "Darius the Mede" was caused by a confusion of history, due both to the destruction of the Assyrian capital Nineveh by the Medes, sixty-eight years before the capture of Babylon by Cyrus, and also to the fame of the later king, Darius Hystaspis, a view which was advanced as early in the history of biblical criticism as the days of the Benedictine monk, Marianus Scotus.
In fine, the interpolation of a Median Darius must be regarded as the most glaring historical inaccuracy of the author of Daniel.
10 and 11) have a long, slender petiole terminating in a fanshaped lamina, which may be entire, divided by a median incision into two wedge-shaped lobes, or subdivided into several narrow segments.
In a radial section of a pine stem each ray is seen to consist in the median part of a few rows of parenchymatous cells with large oval simple pits in their walls, accompanied above and below by horizontal tracheids with bordered pits.
A well-grown plant projects less than a foot above the surface of the ground; the stem, which may have a circumference of more than 12 ft., terminates in a depressed crown resembling a circular table with a median groove across the centre and prominent broad ridges concentric with the margin.
Its body is divisible into three portions, an upper capitulum bearing the mouth and tentacles, a median scapus covered by a friable cuticle, and a terminal physa which is rounded.
(In this Devonian genus there is a single semicircular operculum furnished with a stout median septum and numerous feebly developed secondary septa.
A fine cylindrical rod or fibre (the so-called solid axis or virgula) becomes developed in a median groove in the dorsal wall of the polypary, and is sometimes continued distally as a naked rod.
Collectively the Ixodidae and Argasidae may be distinguished from other Acari by the presence of a median probe, armed with recurved teeth, which project forwards beneath the mouth and between the palpi, and of a conspicuous spiracular area above and usually behind the base of the fourth leg on each side.
From both birds and reptiles the class is distinguished, so far at any rate as existing forms are concerned, by the following features: the absence of a nucleus in the red corpuscles of the blood, which are nearly always circular in outline; the free suspension of the lungs in a thoracic cavity, separated from the abdominal cavity by a muscular partition, or diaphragm, which is the chief agent in inflating the lungs in respiration; the aorta, or main artery, forming but a single arch after leaving the heart, which curves over the left terminal division of the windpipe, or bronchus; the presence of more or fewer hairs on the skin and the absence of feathers; the greater development of the bridge, or commissure, connecting the two halves of the brain, which usually forms a complete corpus callosum, or displays an unusually large size of its anterior portion; the presence of a fully developed larynx at the upper end of the trachea or windpipe, accompanied by the absence of a syrinx, or expansion, near the lower end of the same; the circumstance that each half of the lower jaw (except perhaps at a very early stage of development) consists of a single piece articulating posteriorly with the squamosal element of the skull without the intervention of a separate quadrate bone; the absence of prefrontal bones in the skull; the presence of a pair of lateral knobs, or condyles (in place of a single median one), on the occipital aspect of the skull for articulation with the first vertebra; and, lastly, the very obvious character of the female being provided with milk-glands, by the secretion of which the young (produced, except in the very lowest group, alive and not by means of externally hatched eggs) are nourished for some time after birth.
The roof of the mouth is formed by the palate, terminating behind by a muscular, contractile arch, having in man and a few other species a median projection called the uvula, beneath which the mouth communicates with the pharynx.
Osborn, the tripartite reptilian condyle, by the loss of its median element, has given rise to the paired mammalian condyles; so that this difficulty disappears.
Only the median or carinal strand of xylem is common to stem and leaf; the lateral cauline strands possibly represent the remains of a centripetally developed mass of primary xylem.
The latter is thick and short, and the wall of the sporangium, which opens by a median slit, has a group of thick-walled cells at the summit, forming the annulus.
The sporangium is of considerable size, and dehisces by a median slit, the annulus being a more or less definitely limited horizontal ring of cells near the apex.
The annulus is horizontal and the dehiscence median.
The sporangium, which corresponds on the whole to that of the Gleicheniaceae, has a somewhat oblique annulus; the dehiscence also is not truly median.
The sporangia, which arise in basipetal succession on the receptacle, dehisce by a median slit, though the annulus is somewhat oblique; they have resemblances to the Gleicheniaceae.
The differences in the form and mode of dehiscence of the sporangia (those of the Simplices having median dehiscence and a horizontal annulus, those of the Gradatae a more or less oblique position of the annulus and of the plane of dehiscence, while in the Mixtae the annulus is vertical and the dehiscence transverse) stand in relation to the position of the sporangia in the sorus relatively to one another.
The genital apertures are median and placed far back in the series of somites, viz.
In other cases (some larvae) stigmata are absent; in other cases again a single stigma is developed, as in the smaller Arachnida and Chilopoda, in the median dorsal line or other unexpected position.
In the square-headed varieties the lateral surfaces are nearly as wide as the median ones, owing to the form and arrangement of the spikelets.
In the summer wheats it may often be observed that the median florets do not fill out so fully as in the autumn wheats.
He married Amuhia, daughter of the Median king, according to Abydenus, and in 605 B.C. defeated Necho at Carchemish, driving the Egyptians out of Asia and annexing Syria to the Babylonian empire.
After a brief existence the pupa emerges from the ground, and, holding on to a plant stem by means of its powerful front legs, sets free the perfect insect through a slit along the median dorsal line of the thorax.
Median intervocal d, represented by s (1) in the first stage of the language, has disappeared: f i d eti s gave fesel, then feel, and finally fel; vi d e t i s became oezets, then veets, vets and yea.
Median intervocalic f gives v (Estve, S t ep h an u s); it has disappeared from p r 0 f u n d u s, which yielded the form preon, then pregon (g being introduced to obviate the,hiatus).
Consonants.Here the most remarkable feature, and that which most distinctly marks the wear and ~uar through which the language has passed, is the disappearance of the median consonants I and n:
Words ending in 1 in the singular lose the 1 in the plural (because it then becomes median, and so is dropped): sol (s o 1 e m), but soes (s 0 1 e those having o in the sing.
Though existing horses are usually not marked in any definite manner, or only irregularly dappled, or spotted with light surrounded by a darker ring, many examples are met with showing a dark median dorsal streak like that found in all the other members of the genus, and even with dark stripes on the shoulders and legs.
The basi-hyal is remarkable for the long, median, pointed, compressed " glossohyal " process, which it sends forward from its anterior border into the base of the tongue.
The terminal phalange of the toe is greatly enlarged and modified in form to support this hoof, and the size of the internal framework of the foot is increased by a pair of lateral fibro-cartilaginous masses attached on each side to the hinder edges of the bone, and by a fibro-cellular and fatty plantar cushion in the median part.
ventrally by a median opening?.
The dissection is viewed from the ventral side, and the lips (L) have been cut through in the middle line behind and pulled outwards so as to expose the jaws (j), which have been turned outwards, and the tongue (T) bearing a median row of chitinous teeth, which branches behind into two.
The two uteri join behind and open to the exterior by a median opening.
Generative opening single, median, ventral and posterior.
- With 22 to 24 pairs of claw-bearing legs, with three spinous pads on the legs, and nephridial openings of legs 4 and 5 (sometimes of 6 also) on the proximal pad; feet with one primary papilla on the anterior, one on the posterior side, and one on the dorsal side (median or submedian); outer jaw with a minor tooth, inner jaw without diastema; crural glands absent; well-developed coxal organs absent.
The brightnesses of image points in a median section of the pencil are proportional to the aperture of the lens, supposing that the rays are completely reunited.
The value of the clearness of an image-point in a median section is the sine of the semi-aperture of the pencil multiplied with the refractive index of the medium.
angles formed by the lateral and median planes are the diagonal planes and in these flowers the petals which alternate with the sepals are cut by the diagonal planes.
The median vein is occasionally prolonged beyond the summit of the petals in the form of a long process, as in Strophanthus hispidus, where it extends for 7 in.; or the prolonged extremity is folded downwards or inflexed, as in Umbelliferae, so that the apex approaches the base.
In the median line, immediately above the leaf-scar, is a print representing the ligule, or rather the pit in which it was seated.
Diagram of seed in median longitudinal section.
When the synangia are ripe dehiscence takes place along a median line between the two rows of loculi.
The clavicles rest on a large discoidal, rhomb o i d a 1, or T-shaped median bone, which clearly corresponds to the interclavicle of reptiles.
In these batrachians the pectoral arch falls into two distinct types - the arciferous, in which the precoracoid (+clavicle) and coracoid are widely separated from each other distally and connected by an arched cartilage (the epicoracoid), the right usually overlapping the left; and the firmi- sternal, in which both precoracoid and coracoid nearly abut on the median line, and are only narrowly separated by the more or less fused epicoracoids.
A cartilage in the median line in front of the precoracoids, sometimes supported by a bony style, is the so-called omosternum; a large one behind the coracoids, also sometimes provided with a bony style, has been called the sternum.
brainstem glioma is a disease found primarily in children, with a median survival of only 9 to 12 months.
Combinations containing cisplatin, cyclophosphamide and doxorubicin were studied in the 1980s and showed improved median progression-free survival.
An inception cohort of 1010 patients with RA attending rheumatology clinics was followed for a median of 11.4 years.
The flukes are broad, do not have a median notch, and have concave trailing edges.
The early discharge policy resulted in the median postoperative hospital convalescence being reduced from 5 to 3 days (P 0.001 ).
Reproducibility was defined as the median deviation across the seven maps divided by the median T 1 value in the region of interest.
There was no significant difference in their median duration of successful monotherapy.
median duration of response in colorectal cancer patients was 12 months.
ejaculatory latency time varied between 30 seconds to 44 minutes, with a median IELT of 5.4 minutes (Figure 1 ).
Results: Neither moving the head forward or trunk flexion caused significant movement of the median nerve.
At a median follow-up of 2.7 years, 60% of patients had died of disease.
full timeearnings of full-time male employees were £ 462 per week in April 2004; for women the median was £ 358.
BACKGROUND: brainstem glioma is a disease found primarily in children, with a median survival of only 9 to 12 months.
inception cohort of 1010 patients with RA attending rheumatology clinics was followed for a median of 11.4 years.
medial epicondyle where it is joined by the median cubital vein.
median of 42 months.
The ` ` median ' ' measure is the median of the values outside a block on the basis of each individual block.
median of discrete data.
median of 4 years from diagnosis.
The median viral load decreased from 4.12 log to 2.02 log10, after a median of 15 days from initiation of therapy.
For example, which average to use - mean, median or mode?
find the median of the girls ' shoe sizes in Year 2 at Park School.
The result of using the median instead of the mean can be seen in.
Merely taking a median at each pixel will preferentially select values from certain frames.
Methods 5, and 8 also have low median and mode visual difference scores.
The unweighted median gives similar results to earlier ORAC-DR versions.
Rees and green the national median for a discussion as quot transition.
In many cases the overall economics are so unexceptional in most median sized practices that corporate investors will not even consider them for acquisition.
median survival for patients with myeloma is two years.
median follow-up of 2.7 years, 60% of patients had died of disease.
median nerve - runs through it into the hand.
median annual earnings of employed child support debtors.
median duration of at least 52 weeks.
median home income is the fourth highest in the nation.
metastasisKGROUND: Patients with distant melanoma metastases have median survivals of 4 to 8 months.
In the calculation median seeing conditions are assumed, the zenith angle is zero, and the deformable mirror is conjugate to 6.5 km.
Median neuritis at the elbow is much less common than ulnar neuritis.
Tail flukes are pointed at the tips with a concave trailing edge and a deep median notch.
Likewise the median age for men undergoing radical prostatectomy over the last 20 years has dropped.
There was no tumor recurrence during a median follow-up of 8.4 years.
RESULTS: Patients had received a median of four prior chemotherapy regimens.
In general, the mean is larger than the median in positively skewed distributions and less than the median in negatively skewed distributions.
The median survival for patients with myeloma is two years.
Nineteen patients had a mean and median disease-free survival of 48 and 36 months, respectively.
tail flukes are pointed at the tips with a concave trailing edge and a deep median notch.
only transitory delay in continuing therapy was observed (median 3.9 days ).
tumor recurrence during a median follow-up of 8.4 years.
unexceptional in most median sized practices that corporate investors will not even consider them for acquisition.
- Median (sagittal) section of Cephalodiscus dodecalophus.
An anterior median diverticulum of the pharynx (fig.
2, nch.), growing forwards in the septum between the proboscis-cavity and the collar-cavities, and supported dorsally by the median mesentery of the collar, is the representative of the so-called notochord or stomochord of Balanoglossus; and if the view that this organ is really a notochord is well founded, it may be regarded as the homologue of the anterior end of the Vertebrate notochord.
2 h), whose appendicular nature is shown only by a median furrow and by short, cylindrical palps (fig.
Among the longhorn beetles, the prothorax scrapes over a median file on the mid-dorsal aspect of the mesothorax.
short cerci, and the Pelobiidae, which have elongate larvae, tapering to the tail end, where are long paired cerci and a median process, recalling the grub of a Mayfly.
The substitution of the Persian for the Median power, which took place with the advent of Cyrus, seems to indicate merely the pre-eminence of a particular tribe and not conquest by another race.
Generative pores usually paired, sometimes single and median.
Testes several pairs, rarely one pair, continuous with sperm ducts; ovaries, one pair, continuous with oviducts; generative pores single and median.
No median tooth in radula.
The liver is no longer a compact organ opening by a pair of ducts into the median digestive tract, but we find very numerous hepatic diverticula on a shortened axial tract (fig.
They adopted the Iranian religion of Zoroaster (in the royal town Asaak an eternal fire was maintained), and " their language was a mixture of Scythian and Median " (i.e., Iranian).
Ventrally, each segment of the thorax has a sternum with which a median pre-sternum and paired episterna and epimera are often associated (see figs.
A special " sympathetic " system arises by paired nerves from the oesophageal connectives; these nerves unite, and send back a median recurrent nerve associated with ganglia on the gullet and crop, whence proceed cords to various parts of the digestive system.
In some bristle-tails and may-flies, the two vasa deferentia open separately, but usually they lead into a sperm-reservoir, whence issues a median C From Miall and Denny, The Cockroach, Lovell Reeve & Co.
Along this band a median furrow appears, and a mass of cells sinks within, the one-layered germ band thus becoming transformed into a band of two cell-layers (fig.
On this view Wheeler, however, compares with the " dorsal organ " the peculiar the entire food-canal in most Hexapoda must be regarded as of extra embryonic membrane or indusium which he has observed ectodermal origin, the " endoblast " represents mesoderm only, between serosa and amnion in the embryo of the grasshopper and the median furrow whence it arises can be no longer compared Xiphidium.
Each coelomic pouch - as traced by Heymons in his study on the development of the cockroach (Phyllo- dromia) - divides into three parts, of which the most dorsal contains the primitive germ-cells, the median disappears, and the ventral loses its boundaries as it becomes filled up with the growing fat body (fig.
Thus of the first series of pieces he says that when all exist they may be developed simultaneously, or that the two side-pieces may precede the median, or again that the median may precede the side-pieces - according to the group of birds, but that the second mode is much the commonest.
The larva is also armed anteriorly with a median piercing probe and a pair of sharp hooks by means of which it perforates the walls of the alimentary tract and makes its way into the body cavity, lungs or liver.
They sometimes call him a Bactrian, sometimes a Median or Persian (cf.
places it has sunk into the con Passing from the middle line outwards they are - (i.) the median pallial nerve to the middle of the dorsal mantle; (ii.) numerous small nerves - the circum-oesophageal commissures - which pass round the oesophagus to the chief arm-nerve or supra-oesophageal ganglion; (iii.) the under arm-nerve to the lophophore and its muscles; (iv.) the lateral pallial nerve to the sides of the dorsal mantle.
The posterior median process with its repetition of triangular segments closely resembles the same process in Limulus.
(From Korschelt and Heider, after Laurie.) lateral arteries and of the great median posterior arteries with the heart itself (fig.
The latter bears a pair of median eyes and obsolete lateral eyes on each side.
In this group, the accessory gonopore is the opening of the "vagina," in contradistinction to the median and atrial opening of the uterus which is a "birth-pore."
The alimentary canal persists and revolves in the median plane through an angle of 180Ã‚°, accompanied by part of the larval vestibule, the space formed by the retra^tion of the oral surface.
palpalis, the disseminator of sleeping sickness (see fig.), is about 92 millimetres in length and is the darkest of all the tsetse-flies, though the dark brown abdomen has pale lateral triangular markings and usually at least an indication of a pale longitudinal median stripe.
Or, in other words, the axis or median line of the whole foot is a line drawn between the third and fourth digits (fig.
The evolution consists first in progressive increase in size; second, in the acceleration of the median digit and retardation of the lateral digits, the latter becoming more and more elevated from the ground until finally in Equus (6) they are the lateral splints, which in the embryonic condition have vestigial cartilages attached representing the last traces of the lateral phalanges.
Classification: (A.) Disk usually with well-marked strong trochus, ciliated groove and more delicate cingulua interrupted by an antero-dorsal median gap, usually more or less bilobed.
Valves of the Shell of alimentary tract altogether, and must Cytherea (one of the Si be regarded as a special and peculiar palliate Isomya), from the development of the median anterior part pa dorsal aspect.
The heart of Anodonta consists of a median ventricle embracing the rectum (fig.
Pallial and pedal on each side are closer together than in the other groups, and posteriorly they unite into a supra-rectal cord provided with a median ganglionic enlargement (fig.
In the latter plants there is also a membranous outgrowth, the ligule, at right angles to the median plane of the leaf from the point where the sheath passes into the lamina, there being no petiole (fig.
While all have a general resemblance in the serrated edges of the bill and many other characters, Momotus has the normal number of twelve rectrices, while the rest have only ten, which in Hylomanes have the ordinary configuration, but in adult examples of all the others the shaft of the median pair is devoid of barbs for the space of about an inch a little above the extremity, so as to produce a spatulate appearance, such as is afforded by certain humming-birds known as "racquet-tails" (see HUMMING-BIRD), kingfishers of the genus Tanysiptera (see KINGFISHER), and parrots of the group Prioniturus.
a, Cavity surrounding fin ray; a', fin ray; b, muscular tissue of myotome; c, nervecord; d, notochord; c, left aorta; f, thickened ridges of epithelium of praeoral chamber (Rader organ); g, coiled tube lying in a coelomic space on right side of praeoral hood, apparently an artery; h, cuticle of notochord; i, connective-tissue sheath of notochord; k, median ridge of skeletal canal of nerve-cord; 1, skeletal canal protecting nerve-cord; m, inter-segmental skeletal septum of myotome; n, subcutaneous skeletal connective tissue; o, ditto of metapleur (this should be relatively thicker than it is); q, subcutaneous connective tissue of ventral surface of atrial wall (not a canal, as supposed by Stieda and others); r, epiblastic epithelium; s, gonad-sac containing ova; t, pharyngeal bar in section, one of the "tongue" bars alternating with the main bars and devoid of pharyngo-pleural fold and coelom; v, atrio-coelomic funnel; w, socalled "dorsal" coelom; x, lymphatic space or canal of metapleur; y, sub-pharyngeal vascular trunk; z, blood-vessel (portal vein) on wall of hepatic caecum; aa, space of atrial or branchial chamber; bb, ventral groove of pharynx (anteriorly this takes the form of a ridge); cc, hyperbranchial groove of pharynx; dd, lumen or space of hepatic caecum; ee, narrow coelomic space surrounding hepatic caecum; $, lining cell-layer of hepatic caecum; gg, inner face of a pharyngeal bar clothed with hypoblast, the outer face covered with epiblast (represented black); hh, a main pharyngeal bar with projecting pharyngeal fold (on which the reference line rests) in section, showing coelomic space beneath the black epiblast; ii, transverse ventral muscle of epipleura; kk, raphe or plane of fusion of two down-grown epipleura; 11, space and nucleated cells on dorsal face of notochord; mm, similar space and cells on its ventral face.
In the genus Branchiostoma the metapleural folds terminate symmetrically shortly behind the atriopore, but in Heteropleuron the right metapleur passes uninterruptedly into the median crest of the ventral fin (fig.
These wars were continued under successive kings, till the Assyrian power in these regions attained its zenith under Sargon (q.1.), who (715 B.C.) led into exile the Median chief Dayuku (see DElocEs), a vassal of the Minni (Mannaeans), with all his family, and subjected the princes of Media as far as the mountain of Bikni (Elburz) and the border of the great desert.
The culminating stage of evolution is seen in the median ocelli of Charybdaea (fig.
13, Pg); the exine extends over two-thirds of the circumference, leaving a thin portion of the wall, which on collapsing produces a longitudinal groove similar to the median depression on the pollen-grain of a cycad.
The latter is a thin flat scale bearing a median ridge or keel (e.g.
The accessory generative glands are the two vesiculae seminales, with the median third vesicle, or uterus masculinus, lying between them, the single bilobed prostate, and a pair of globular Cowper's glands.
In the median line of the buccal cavity in front is placed a thick muscular protuberance, which may be called the tongue, though attached to the dorsal instead of to the ventral wall of the mouth (fig.
A plane passing through the anterior and posterior sepal and through the floral axis is termed the median plane of the flower; a plane cutting it at right angles, and passing through the lateral sepals, is the lateral plane; whilst the planes which bisect the ?? ?
Tobacco smoking and denture wearing as local aetiological factors in median rhomboid glossitis.
Only transitory delay in continuing therapy was observed (median 3.9 days).
The median reduction of seizures from vagal nerve stimulation is 45% at 1 year.
According to FICO, the United States median score is 723.
According to SmartMarriages.com, the median age of divorce for women between the ages of 25-29 was 3.4 years.
The U.S. Bureau of Labor Statistics gives the following information regarding interior designers' salaries: "Median annual earnings for wage and salary interior designers were $42,260 in May 2006.
You also get information on the city in which the person lives, such as the population, number of households, and median age.
Hogan's passenger, longtime friend John Graziano, was in the front passenger seat as Nick lost control of the small car and hit a concrete median.
Hogan and another man were drag racing when he lost control of his vehicle and slammed into a concrete median, causing the car to flip and hit a palm tree.
The impact caused the small car to turn sideways and go into the median, hitting a concrete divider.