CATALOGUE OF AMPHIBIA. 
Cuass IV. AMPHIBIA., 
Animal furnished with a distinct bony skeleton. 
Skin naked, and without any bony case; very rarely with very 
small embedded scales. 
Body variable in form. 
Skull with two occipital condyles. 
Head without any distinct neck. 
Toes (almost always) without claws. 
fibs none, or short. Sternum often distinct. 
Male without any prominent generative organs. 
Respiring by cellular lungs, and often by external gills, which 
generally fall off as the animal reaches adult age. 
Eggs with a soft shell. 
Young subject to a metamorphosis. : 
Amphibia, Reptiles, seu A. Reptilia (partim), Zinn. Syst. Nat. ed. 
©... 3. 
Sebze (seu Amphibia) Reptilia (part.) Scovol, Introd H. N. 460. 
1777. . 
Batrachia Tschudi, Batrach. 1838. 
Batraciens Brongniart, Bull. Soc. Philom. 1799; Duméril, Zool. 
Anal. 1806. 
Batrachia (and Ophidia part.) Rajin. Annal. Nat. 74.1815. 
Les Batraciens (et Serpents nus) Cuvier, Iég. Anim. ii. 88. ed. 
2 i 101. 
Reptilia Batrachia Oppel. Rept. 1811. 
Amphibiens Blainv. Org. Anim. i. tab. 5. 1822. 
Batrachia, Reptiles Ictyoides ou Nudipelliféres Blainy. Bul. Soc. 
Philom. 1816, 119. 
Amphibia Batrachii Cuv.; Eichwald, Zool. Spec. iii. 163. 
Dipnoa Leuck. ; Fitz. Nat. N. Class. 63. 1826, Syst. Rept. 1843. 
Dipnoa, or Diplonoa, Batrachia Bonap. Amph. Eur. 10. 1839; 
Mem. Acad. Sci. Torino, i. 1839. 
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