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leeches

leeches Sentence Examples

  • All leeches are very extensile and can contract the body to a plump, pear-shaped form, or extend it to a long and worm-like shape.

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  • The rivers and lakes yield enormous quantities of fish, and leeches also are plentiful.

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  • Small leeches taken into the mouth with drinking-water may give rise to serious symptoms by attaching themselves to the fauces and neighbouring parts and thence sucking blood.

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  • Leeches are usually olive green to brown in colour, darker patches and spots being scattered over a paler ground.

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  • In one subdivision of the leeches, the Gnathobdellidae, the mouth has three chitinous jaws which produce a triangular bite, though the action has been described as like that of a circular saw.

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  • These chitinous, rod-like, rarely squat and then hook-like structures are found in the majority of the Chaetopoda, being absent only in certain Archiannelida, most leeches, and a very few Oligochaeta.

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  • The division and, indeed, partial suppression of the coelom culminates in the leeches, which in this, as in some other respects, are the most modified of Annelids.

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  • In the leeches, however, there seems to be the commencement of the formation of a syncerebrum.

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  • There are many genera and species of leeches, the exact definitions of which are still in need of a more complete survey.

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  • The capillaries sometimes (in many leeches and Oligochaeta) extend into the epidermis itself.

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  • The body wall of the Chaetopoda consists of a "dermo-muscular" tube which is separated from the gut by the coelom and its peritoneal walls, except in most leeches.

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  • It has been held that the condition shown in certain leeches tend to prove that the coelom and haemocoel are primitively one series of spaces which have been gradually differentiated.

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  • These characters are plain in all the cases cited, excepting only the leeches which will be considered separately.

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  • A consideration of the mode of development and appearance of the coelomoducts that have thus far been enumerated (with the possible exception of those of the leeches) seems to show that there is a distinct though varying relation between them and the nephridia.

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  • In Polynoe the nephridia are short tubes with a slightly folded funnel whose lumen is intercellular, and this intercellular lumen is characteristic of the Polychaetes as contrasted with leeches and Oligochaetes.

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  • - The Oligochaeta agree with the leeches and differ from most Polychaeta in that they are hermaphrodite.

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  • These worms lay cocoons like the Oligochaeta and leeches, and where they depart from the structure of the Oligochaeta agree with that of leeches.

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  • The ganglia are crowded at the posterior end of the body as in leeches, and there is much tendency to the obliteration of the coelom as in that group. Pterodrilus and Cirrodrilus bear a few, or circles of, external processes which may be branchiae; Bdellodrilus and Astacobdella have none.

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  • - The leeches are more particularly to be compared with the Oligochaeta, and the following definition embraces the main features in which they agree and disagree with that group. Setae are only present in the genus Acanthobdella.

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  • Ozobranchus possesses a coelom which is less typically chaetopodous than that of Acanthobdella, but more so than in other leeches.

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  • On the other hand, it has been held that in these leeches there is no vascular system at all and that the entire system of spaces is coelom.

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  • A stage exactly comparable to the stage in the leeches, where the ovary is surrounded by a closed sac, has been observed in Eudrilus.

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  • We have here clearly a case of a true coelomoduct performing the function of an oviduct in both leeches and Eudrilidae.

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  • Classes: Arachnida, Insecta (including Sub-Classes M y riapoda, Hexapoda), Crustacea (including Sub-Classes Entomostraca, Malacostraca), Epizoa (Epizootic Crustacea), Annellata (Chaeto p ods and Leeches), Cirripedia.

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  • Leeches were his favourite instruments, and so much so that he is said to have used ioo,000 in his own hospital wards during one year.

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  • Leger (32, 33) and others, that leeches are true alternate hosts for these forms, in which certain phases of the life-cycle are normally undergone.

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  • Keysselitz (16), from fishes; also several other piscine Trypanosomes have their development phases in leeches worked on by Brumpt (5a).

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  • Known invertebrate hosts for different species are Hemiclepsis and Piscicola, leeches.

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  • (1904), 57, p. 165; (5a) idem," On the mode of transmission and development of Trypanosomes and Trypanoplasms in leeches," C. r.

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  • Scorpions noted for the virulence of their poison abound as well as horse leeches in the tanks.

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  • Peat-moss of the most sterile character has been by this process covered with soil of the greatest fertility, and swamps which used to be resorted to for leeches are now, by the effects of warping, converted into firm and fertile fields.

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  • The Oder and some of the tributaries of the Elbe abound in crayfish, and in the stagnant lakes of East Prussia leeches are bred.

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  • The exports are: - Cereals, cotton, cotton seed, dried fruits, drugs, fruit, gall nuts, gum tragacanth, liquorice root, maize, nuts, olive oil, opium, rice, sesame, sponges, storax, timber, tobacco, valonia, walnut wood, wine, yellow berries, carpets, cotton yarn, cocoons, hides, leather, mohair, silk, silk stuffs, rugs, wax, wool, leeches, live stock, minerals, &c. The imports are: - Coffee, cotton cloths, cotton goods, crockery, drysalteries, fezzes, glass-ware, haberdashery, hardware, henna, ironware, jute, linen goods, manufactured goods, matches, petroleum, salt, sugar, woollen goods, yarns, &c.

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  • The removal of blood, either by incision or by the application of leeches, sometimes gives considerable relief to the pain and tension of inflamed parts.

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  • There is a breeding establishment for leeches.

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  • Like the leeches the earthworms produce cocoons which are a product of the glandular epithelium of the clitellum.

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  • If you put your hand down it will be covered with stinging ants or leeches.

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  • Earthworms, leeches, lugworms and marine worms bryozoans Bryozoans look like plants but actually consist of thousands of tiny animals.

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  • Ellen Clever, provides and applies the best leeches.

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  • A favorite ' cure ' was to bleed the patient using leeches.

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  • In the meanwhile, I have a few leeches for sale.

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  • At one time doctors regularly put leeches on the bodies of their patients to drink their blood.

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  • medicinal leeches, for example, once a well used cure for all types of diseases are now a threatened species.

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  • terrestrial leeches, one of Madagascar's many interesting Asian affinities, can be a real pest.

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  • And change my proposed target to involve a ton of live leeches.

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  • medicinal leeches, for example, once a well used cure for all types of diseases are now a threatened species.

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  • Other creatures which live among the plants for shelter and food include water beetles, leeches and flat worms.

    0
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  • There are many genera and species of leeches, the exact definitions of which are still in need of a more complete survey.

    0
    0
  • In one subdivision of the leeches, the Gnathobdellidae, the mouth has three chitinous jaws which produce a triangular bite, though the action has been described as like that of a circular saw.

    0
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  • Leeches without biting jaws possess a protrusible proboscis, and generally engulf their prey, as does the horse leech when it attacks earthworms. But some of them are also ectoparasites.

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  • Small leeches taken into the mouth with drinking-water may give rise to serious symptoms by attaching themselves to the fauces and neighbouring parts and thence sucking blood.

    0
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  • All leeches are very extensile and can contract the body to a plump, pear-shaped form, or extend it to a long and worm-like shape.

    0
    0
  • Leeches are usually olive green to brown in colour, darker patches and spots being scattered over a paler ground.

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  • They are divisible into the Haplodrili or Archiannelida, the Polychaeta containing the marine worms, the Oligochaeta or terrestrial and fresh-water annelids (see Earthworm), the Hirudinea or leeches (see Leech), and a small group of parasitic worms, the 11-Tyzostomida (q.v.).

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  • The body wall of the Chaetopoda consists of a "dermo-muscular" tube which is separated from the gut by the coelom and its peritoneal walls, except in most leeches.

    0
    0
  • These chitinous, rod-like, rarely squat and then hook-like structures are found in the majority of the Chaetopoda, being absent only in certain Archiannelida, most leeches, and a very few Oligochaeta.

    0
    0
  • The division and, indeed, partial suppression of the coelom culminates in the leeches, which in this, as in some other respects, are the most modified of Annelids.

    0
    0
  • In the leeches, however, there seems to be the commencement of the formation of a syncerebrum.

    0
    0
  • The capillaries sometimes (in many leeches and Oligochaeta) extend into the epidermis itself.

    0
    0
  • It has been held that the condition shown in certain leeches tend to prove that the coelom and haemocoel are primitively one series of spaces which have been gradually differentiated.

    0
    0
  • In this category are included (by Goodrich and Lankester) the gonad ducts of the Oligochaeta, certain funnels without any aperture to the exterior that have been detected in Nereis, &c., funnels with wide and short ducts attached to nephridia in other Polychaeta, gonad ducts in the Capitellidae, the gonad ducts of the leeches.

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  • These characters are plain in all the cases cited, excepting only the leeches which will be considered separately.

    0
    0
  • A consideration of the mode of development and appearance of the coelomoducts that have thus far been enumerated (with the possible exception of those of the leeches) seems to show that there is a distinct though varying relation between them and the nephridia.

    0
    0
  • In Polynoe the nephridia are short tubes with a slightly folded funnel whose lumen is intercellular, and this intercellular lumen is characteristic of the Polychaetes as contrasted with leeches and Oligochaetes.

    0
    0
  • - The Oligochaeta agree with the leeches and differ from most Polychaeta in that they are hermaphrodite.

    0
    0
  • These worms lay cocoons like the Oligochaeta and leeches, and where they depart from the structure of the Oligochaeta agree with that of leeches.

    0
    0
  • The ganglia are crowded at the posterior end of the body as in leeches, and there is much tendency to the obliteration of the coelom as in that group. Pterodrilus and Cirrodrilus bear a few, or circles of, external processes which may be branchiae; Bdellodrilus and Astacobdella have none.

    0
    0
  • - The leeches are more particularly to be compared with the Oligochaeta, and the following definition embraces the main features in which they agree and disagree with that group. Setae are only present in the genus Acanthobdella.

    0
    0
  • Ozobranchus possesses a coelom which is less typically chaetopodous than that of Acanthobdella, but more so than in other leeches.

    0
    0
  • On the other hand, it has been held that in these leeches there is no vascular system at all and that the entire system of spaces is coelom.

    0
    0
  • A stage exactly comparable to the stage in the leeches, where the ovary is surrounded by a closed sac, has been observed in Eudrilus.

    0
    0
  • We have here clearly a case of a true coelomoduct performing the function of an oviduct in both leeches and Eudrilidae.

    0
    0
  • The rivers and lakes yield enormous quantities of fish, and leeches also are plentiful.

    0
    0
  • Classes: Arachnida, Insecta (including Sub-Classes M y riapoda, Hexapoda), Crustacea (including Sub-Classes Entomostraca, Malacostraca), Epizoa (Epizootic Crustacea), Annellata (Chaeto p ods and Leeches), Cirripedia.

    0
    0
  • Leeches were his favourite instruments, and so much so that he is said to have used ioo,000 in his own hospital wards during one year.

    0
    0
  • Leger (32, 33) and others, that leeches are true alternate hosts for these forms, in which certain phases of the life-cycle are normally undergone.

    0
    0
  • Keysselitz (16), from fishes; also several other piscine Trypanosomes have their development phases in leeches worked on by Brumpt (5a).

    0
    0
  • Known invertebrate hosts for different species are Hemiclepsis and Piscicola, leeches.

    0
    0
  • (1904), 57, p. 165; (5a) idem," On the mode of transmission and development of Trypanosomes and Trypanoplasms in leeches," C. r.

    0
    0
  • Scorpions noted for the virulence of their poison abound as well as horse leeches in the tanks.

    0
    0
  • Peat-moss of the most sterile character has been by this process covered with soil of the greatest fertility, and swamps which used to be resorted to for leeches are now, by the effects of warping, converted into firm and fertile fields.

    0
    0
  • The Oder and some of the tributaries of the Elbe abound in crayfish, and in the stagnant lakes of East Prussia leeches are bred.

    0
    0
  • The exports are: - Cereals, cotton, cotton seed, dried fruits, drugs, fruit, gall nuts, gum tragacanth, liquorice root, maize, nuts, olive oil, opium, rice, sesame, sponges, storax, timber, tobacco, valonia, walnut wood, wine, yellow berries, carpets, cotton yarn, cocoons, hides, leather, mohair, silk, silk stuffs, rugs, wax, wool, leeches, live stock, minerals, &c. The imports are: - Coffee, cotton cloths, cotton goods, crockery, drysalteries, fezzes, glass-ware, haberdashery, hardware, henna, ironware, jute, linen goods, manufactured goods, matches, petroleum, salt, sugar, woollen goods, yarns, &c.

    0
    0
  • The removal of blood, either by incision or by the application of leeches, sometimes gives considerable relief to the pain and tension of inflamed parts.

    0
    0
  • There is a breeding establishment for leeches.

    0
    0
  • Like the leeches the earthworms produce cocoons which are a product of the glandular epithelium of the clitellum.

    0
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  • Certainly some of the medical practices of the ancient world, such as bloodletting and the use of leeches, seem to us at least misguided and at worst, barbaric.

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  • Other creatures which live among the plants for shelter and food include water beetles, leeches and flat worms.

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  • Oh, wait, Spencer doesn't work and just leeches off his pretend-wife, so Huston couldn't even get his hospital bills paid if he did that.

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