AMPHIBIA, a zoological term originally employed by Linnaeus to denote a class of the Animal Kingdom comprising crocodiles, lizards and salamanders, snakes and Caeciliae, tortoises and turtles and frogs; to which, in the later editions of the Systema N aturae he added some groups of fishes.
In addition Cuvier accepts the Linnaean subdivisions of Amphibia-Reptilia for the tortoises, lizards (including crocodiles), salamanders and frogs; and Amphibia-Serpentes for the snakes, apodal lizards and Caeciliae.
In 1799' Alexandre Brongniart pointed out the Wide differences which separate the frogs and salamanders (which he terms Batrachia) from the other reptiles; and in 1804 P. A.
Salamanders, toads and frogs are numerous, and crocodiles abound.
Salamanders in the restricted sense (genus Salamandra of N.
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