The origin of the fauna and flora of Australia has attracted considerable attention.
In the Urals the marine facies is more fully developed and the fauna shows affinities with that of the Productus limestone of the Central Asian mountain belt.
The greatest development of the Argentine fauna, however, is in the warm, wooded regions of the north and north-east, where many animals are of the same species as those in the neighbouring territories of Brazil.
From an area corresponding to what is now South America there entered a fauna and flora, which, after undergoing modification, passed by way of Tasmania to Australia.
Wales, 1895; " The Relation of the Fauna and Flora of Australia to those of New Zealand," Nat.
In the British fresh-water fauna only two genera, Hydra and Cordylophora, are found; in America occurs an additional genus, Microhydra.
" Hydromedusae with a Revision of the Williadae and Petasidae," Fauna and Geogr.
Pseudis was first described by Marie Sibylle de Merlon (1647-1717), in her work on the fauna of Surinam (published first in 1705 at Amsterdam, republished in Latin in 1719), as a frog changing into a fish.
The fauna of Liberia is sufficiently peculiar, at any rate as regards vertebrates, to make it very nearly identical with a "district" or sub-province of the West African province, though in this case the Liberian "district" would not include the northernmost portions of the country and would overlap on the east and west into Sierra Leone and the French Ivory Coast.
Unmistakable traces show that, while during the Glacial period Russia had an arctic flora and fauna, the climate of the Lacustrine period was more genial than it is now, and a dense human population at that time peopled the shores of the numberless lakes.
The fauna of the Baltic provinces is described in full in the Memoirs of the scientific bodies of these provinces.
Iv., Zoology (St Petersburg, 1875), though dealing more especially with Siberia, is an invaluable source of information for the Russian fauna generally.
The species of fauna that are at all characteristic of this part of the United States are found in the Piedmont Plateau Region and the western portion of the Coastal Plain Region.
And fauna are essentially Asiatic in their type, while to the south and east the Australian element begins to be distinctly marked, soon to become predominant.
S.) Flora And Fauna The general assemblage of animals and plants found over northern Asia resembles greatly that found in the parts of Europe which are adjacent and have a similar climate.
==Fauna== The Argentine fauna, like its flora, has been greatly influenced by the character and position of the pampas.
The vertical relief of the land above the ocean is a very important factor in determining the climate as well as the distribution of the fauna and flora of a continent.
Modern naturalists consider that many of the problems of Australia's remarkable fauna and flora can be best explained by the following hypothesis: - The region now covered by the antarctic ice-cap was in early Tertiary times favoured by a mild climate; here lay an antarctic continent or archipelago.
Previous to its arrival Australia doubtless possessed considerable vegetation and a scanty fauna, chiefly invertebrate.
" Die arktischen Medusen (ausschliesslich der Polypomedusen)," Fauna arctica, iv.
Each of these divisions is the home of a special fauna, many species of which are confined to it alone; in the Australian region, indeed, practically the whole fauna is peculiar and distinctive, suggesting a prolonged period of complete biological isolation.
Accordingly their disproportionate prevalence in South America points unerringly to the lower rank of the avifauna of the region as a whole, and therefore to the propriety of putting it next in order to that of the Australian region, the general fauna of which is admittedly the lowest in the world.
For narrow as are the channels between Cuba and the opposite coast of Central America, between the Bahamas and Florida, and between Grenada and Tobago, the fauna of the Antillean chain, instead of being a mixture of that of the almost contiguous countries, differs, much from all, and exhibits in some groups a degree of speciality which may be not unfitly compared with that of oceanic islands..
Fauna.-Among wild animals the tiger or ounce-called in the Guarani language the ja-gud or "big dog"-and the puma are found on the frontier of Brazil and on the wooded islets and banks of the larger rivers.
The term "flora" is used in botany collectively for the plantgrowth of a district; similarly "fauna" is used collectively for the animals.
The absence of Coregoni is a characteristic feature of the fish-fauna of the steppes; the carp, on the contrary, reappears, and the rivers abound in sturgeon (Acipenseridae).
Of the fauna of the lower slopes, tracks of elephant, leopard and buffalo have been seen, between 11,500 and 14,500 ft.
Both the fauna and flora of the higher levels present close affinities with those of Mount Elgon, of other mountains of East Africa and of Cameroon Mountain.
DIPTERA (Sis, double, 7rTEpa, wings), a term (first employed in its modern sense by Linnaeus, Fauna Suecica, 1st ed., 1746, p. 306) used in zoological classification for one of the Orders into which the Hexapoda, or Insecta, are divided.
At Beaufort the United States Bureau of Fisheries has a marine biological laboratory, established in 1901 for the study of the aquatic fauna of the south-east coast.
Nearly all the mammals of Europe also occur in northern Asia, where, however, the Palaearctic fauna is enriched by numerous additional species.
The Black Sea, the fauna of which appears to be very rich, belongs to the Mediterranean region, slightly modified, while the Caspian partakes of the characteristic fauna inhabiting the lakes and seas of the Aral-Caspian depression.
2 Bibliography of Fauna: see Pallas, Zoographia Rosso-Asiatica; Syevertsov for the birds of south-eastern Russia; M.
Reiches, for reptiles generally; Rodoszkowski and the publications of the Entomological Society generally for insects; Czerniaysky for the marine fauna of the Black Sea; Kessler for that of Lakes Onega and Ladoga; Grimm for the Caspian.
It is well known that Darwin was deeply impressed by differences in flora and fauna, which seemed to be functions of locality, and not the result of obvious dissimilarities of environment.