. Elementary text-book of zoology. Zoology. AMPHIBIA. nected not only the loss of the internal gills, but also the appearance of the anterior extremities which have been long concealed beneath the skin. The horny beak is now cast off, and the eyes, which have hitherto been concealed beneath the skin, appear on the surface, and are of considerable size. The larva has now become an exclusively air-breathing, four-legged Frog, which has only to lose its swimming tai'l in order to acquire its definitive form and be fitted for its terrestrial life (vol. L, fig. 112). Some Batrachia are true land an
. Elementary text-book of zoology. Zoology. AMPHIBIA. nected not only the loss of the internal gills, but also the appearance of the anterior extremities which have been long concealed beneath the skin. The horny beak is now cast off, and the eyes, which have hitherto been concealed beneath the skin, appear on the surface, and are of considerable size. The larva has now become an exclusively air-breathing, four-legged Frog, which has only to lose its swimming tai'l in order to acquire its definitive form and be fitted for its terrestrial life (vol. L, fig. 112). Some Batrachia are true land animals (Toads and Tree-Frogs), which especially love dark and damp hiding places ; others live indifferently on land or in water. In the first case the five toes of the hind feet are either entirely without a connecting membrane or only have an incomplete one ; exceptionally (Pelobates), however, they are completely webbed. In the second case, on the contrary, the hind feet are, as a rule, com- pletely webbed. The land Frogs usually seek the wrater only at spawning time ; they crawl, run, and hop on the land, or dig passages and holes in the earth (Pelulates, Alytes], or they are able to climb up shrubs and trees by means of Mictorial discs on the ends of their toes (Dendrobates, Hyla}. Tribe 1. Aglossa. Batrachia with- out tongue. The tympanic mem- brane is not exposed. The eyes are 1 placed anteriorly near the angles of the mouth. The hind feet have entire webs. They live in hot locali- tieSj especially of the New World. Fam. Pipidae. Hudy toad-like, flat, without teeth on jaws and palate. Pij/a dorsigera Schn., Surinam Toad. Fain. Dactylethridae. The body is more frog-like, with teeth on the maxil- lariesand priemaxillaries. Xcnujnts (Dttt-tyletlira) capensis Cuv. (Krallenfrosch), (fig. t>3U) ; MyobatracJi-us paradoxua FIG. Tribe 2. Oxydactylia. Batrachia and pointed fingers and toes. with freely movable tongue Fain. Eanidae. "Water-Frogs. Batrachians w
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
