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EUROPE AND TEMPERATE

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Originally appearing in Volume V23, Page 174 of the 1911 Encyclopedia Britannica.
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EUROPE AND TEMPERATE See also:AsIA.—The See also:present reptilian See also:fauna of this vast See also:area is composed almost entirely of the leavings of those See also:groups which are now flourishing with manifold differentiations under more genial climes, in See also:Africa and See also:India. Fossils, none too numerous, tell us that it was not always thus, since crocodiles, alligators and See also:long-snouted gavials, all the See also:main groups of chelonians, iguanoids, &c., existed in See also:England, the crocodilians persisting even towards the end of the See also:Tertiary See also:period. There are no crocodiles now in the See also:Eurasian sub-region, excepting small survivors in the See also:Jordan See also:basin, on the borderland of Africa; but the Yang-tse-Kiang is inhabited by an See also:alligator, A. sinensis, while all its congeners are now in See also:America. This finds, to a certain extent, a parallel in Trionyx, of which one See also:species lives in the See also:Euphrates basin, likewise borderland, and another, T. maacki, in See also:rivers of N. See also:China, e.g. in the Amoor. Of other Chelonians we See also:note several species of Testudo, two of them See also:European; Emys europaea, chiefly in Europe, with the other species E. blandingi in the eastern See also:United States; and a few species of Oemm s, a truly periarctic genus. Of Lacertilia we exclude the See also:chameleon. Of geckos Hemidactylus turcicus extends from See also:Portugal to See also:Karachi; Platydactylus facetanus is at See also:home in most S. Mediterranean countries; Teratoscincus is See also:peculiar to the See also:steppes and deserts of See also:Turkestan and See also:Persia; other geckos in the transitional region from Asia See also:Minor to India. Of Lacertae we have Anguidae, Agamidae, Lacertidae, Amphisbaenidae and Scincidae, most of them in Europe represented by but one or two species. Thus Blanus cinereus in Mediterranean countries, Asia Minor and See also:Syria, represents the Amphisbaenidae which are found nowhere else in Europe or Asia, but plentiful in Africa and both Americas. Of the Anguidae, Anguis fragilis is peculiar to Europe, Ophisaurus apus in S.E.

Europe, another in Indo-Burman countries, with the See also:

rest of the species in N. America. Of Scincidae few in Europe, e.g. Chalcides s. Seps s. Gongylus, others from Asia Minor eastwards, e.g. Scincus, and Ablepharus in Turkestan. Agamidae do not occur in Europe but they exist in considerable See also:numbers from Asia Minor and Turkestan to China, with Phrynocephalus peculiar to central Asia. Lastly, the Lacertidae, of which several species of Lacerta, Psammodromus, Acanthodactylus in Europe, but the See also:majority in Africa and warmer parts of India; in a similar manner the Manchurian forms are related to See also:Chinese. The See also:total number of palaearctic See also:snakes amounts to about sixty, the majority living in the Mediterranean countries and in W. Asia. One Typhlops in the See also:Balkan See also:peninsula and in W.

Asia, in Persia also Glauconia; Eryx jaculus extends into See also:

Greece from S.W. Asia as See also:sole representative of the Boidae. Several vipers, the See also:common See also:viper, V. berus, from See also:Wales to Saghalien See also:Island, V. aspis, V. latastei and V. ammodytes in S. Europe; a See also:pit viper, Ancistrodon, e.g. See also:hales, in the See also:Caspian See also:district, thence this genus through China and again in N. America. Echis extends N. into Turkestan. The See also:Indian See also:cobra ranges N. to Transcaspia and far into China. All the other snakes belong to the aglyphous and opisthoglyphous Colubridae; of the latter Coelopeltis is peculiar to S. Europe and S.W. Asia; Macroprotodon cucullatus to S. See also:Spain, the Balearic Islands and N. Africa; Tephrometopon peculiar to Turkestan and neighbouring countries; none extending into E.

Asia. Of the aglyphous colubrines the most characteristic genus is Zamenis incl. Zaocys, very widely spread and including more species than any other palaearctic genus; several species of the wide-ranging genus Tropidonotus, besides Coluber,with Rhinechis scalaris in S.W. Europe. There are, besides, other genera, especially in the debatable countries of S.W. Asia, Persia and See also:

Afghanistan, and speaking generally the colubrines show less See also:affinity to See also:African than to Indian forms, just as we should expect from the prevailing See also:geographical conditions. If it were not for the N.W. corner of Africa and portion of its N. See also:coast, the European fauna would have very little in common with Africa.

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