192 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. VII. 



water, and these develop into a larval or tadpole form, which much 

 resembles that of toads, and which has similar habits. The tadpole 

 or larval form of the frog is larger than that of the toad, though 

 the adult is smaller. Lakes Amatitlan and Atitlan, common. 



Family Cystignathidse. FROGS; RANAS. 



Leptodactylus microtis Cope. FROG; RAN A. 



This small frog is quite abundant in wet places under stones, 

 pieces of wood or other material, which easily conceal them. 

 Its breeding habits are the same as those of the preceding species. 

 Though quite abundant about the shores of the lake Amatitlan 

 it is too small to be of much economic importance. The adult 

 frog and the adult toad feed mostly on insects. This species was 

 not taken at Lake Atitlan. Common at Lake Amatitlan. 



THE REPTILES OF LAKES AMATITLAN AND ATITLAN 



Reptiles were not abundant during January and February on 

 or about the shores of these lakes, and none of those found there, 

 except one turtle, are distinctively water animals. The following 

 list comprises all that were taken or were common near the water's 

 edge. No water snakes, or rather snakes frequenting the water, 

 were observed during my stay at these lakes. 



Family Iguaiiidre. IGUANAN. 



Basaliscus vittatus Gray. 



A few specimens of this species were taken along the more 

 rocky shores of Lake Amatitlan. It is not nearly so abundant 

 here as in the lower lands. 



Iguana rhinopla Gray. IGUANA. 



One specimen was taken during my stay at Lake Amatitlan, 

 the only one I saw. 



Ctenosaura acanthura Gray. IGUANA. 



This species is very abundant along the rocky shores of the 

 lake. Its eggs and flesh are eaten by the natives. This species 



