72 ZOOLOGICAL GEOGRAPHY. [part hi. 



Reptiles and Amphibia. — These classes not having been 

 systematically collected, and the numerous described genera not 

 having undergone careful revision, little trustworthy information 

 can be derived from them. The following enumeration of the 

 chief groups hitherto noticed or described, will, however, show 

 very similar features to those presented by the birds — a general 

 relation to Neotropical forms, a more special relation to those 

 of Central America and Mexico, and a considerable number of 

 peculiar types. 



Snakes. — Arrhyton (Calamariidse) from Cuba, Hypsirhynchus 

 from Barbadoes, Cryptodacus from Cuba, Ialtris from Hayti, and 

 Goloragia from Cuba (all Colubridse), have been described as 

 genera peculiar to the Antilles. Phylodryas and Dromicus 

 (Colubridse) are Antillean and Neotropical ; Ahmtulla (Den- 

 drophidse) has the same distribution but extends to tropical 

 Africa ; Epicrates and Corallus (Pythonidse) are Neotropical 

 and Antillean ; while Ohilabothrus from Jamaica and Ungalia 

 from Cuba and Jamaica (both Pythonidse) are found elsewhere 

 only in Central America and Mexico. There appear to be no 

 Crotalidse except an introduced species of Craspedocephalus in 

 St. Lucia. 



Lizards are more numerous. Ameiva (Teidae) is found all 

 over America. Gerrhonolus (Zonuridse) is Neotropical and occurs 

 in Cuba ; Gymnopthalmus is South American and Antillean. 

 Of Scincida? seven genera are noted. Celestus (with 9 species) is 

 peculiar to the Antilles ; Camilia (1 species) to Jamaica, Panoplus 

 (1 species) and Embryopus (1 species) to Hayti; Diplogossus is 

 Antillean and South American ; while Plestiodon and Mabouya 

 are cosmopolite. Of Geckotidae there are four genera ; Phyllo- 

 dactylus and Hemidactylus which are cosmopolite ; Sphmrodactylus 

 which is wholly American ; and Cubina found only in Martinique 

 and Brazil. Of Iguanidse there are six genera ; Anolis, which 

 ranges all over America ; Polychrus, which is Neotropical ; 

 Iguana and Liocephalus which are South American ; Tropedurm 

 found in Cuba and Brazil ; and Cyclura only known from 

 Jamaica, Cuba, and Central America. 



Amphibia. — The genus Trachycephalus, belonging to the 



