72 ZOOLOGICAL GEOGRAPHY. [PART in. 



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 (Calamariidae) from Cuba, Hypsirhynchus 

 from Barbadoes, Cryptodacus from Cuba, laltris from Hayti, and 

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

 genera peculiar to the Antilles. Phylodryas and Dromicus 

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

 drophidae) has the same distribution but extends to tropical 

 Africa ; Epicrates and Corallus (Pythonidse) are Neotropical 

 and Antillean ; while Chilabothrus from Jamaica and Ungalia 

 from Cuba and Jamaica (both Pythonidaa) are found elsewhere 

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

 Crotalidse except an introduced species of Craspedocephalw in 

 St. Lucia. 



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

 over America. Gerrhonotus (Zonuridae) is Neotropical and occurs 

 in Cuba ; Gymnopihalmus is South American and Antillean. 

 Of Scincidee 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; Diplogossm is 

 Antillean and South American ; while Plestiodon and Malouya 

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

 dactylus and Hemidactyhis which are cosmopolite ; Sphcerodactylus 

 which is wholly American ; and Cubina found only in Martinique 

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

 ranges all over America ; Polychrus, which is Neotropical ; 

 Iguana and iocephalus which are South American ; Tropedurus 

 found in Cuba and Brazil; and Cyclura only known from 

 Jamaica, Cuba, and Central America. 



Amphibia. The genus Trachycephalus, belonging to the 



