MK'IIICAN A( AI)l<:.\n' OK S('I1<:\('K. 



Table i. 

 Bog and Woodland Series of Habitats. 



p. 



eS 

 V 



a 



if 



Anil)y5t()ui;\ jefffrsoiiiaiHiMi 



Plfthodon t'r\ tlii-oiiotus 



Uiil'o aiiierifaiuis adult F 



Hiifo aiiierifaiuis youiii'* 



I lyla vcrsic-t)l()r 



I lyla jiickeringii 



Acris ^i'ryllu.s 



liana ])ipiens — adult C 



Uaiia jiipiens — young* ]"' 



liana claniitans — adult C 



Uana c-lamitans — young* 



Kana cantahrigensis — adult V 



Uana cantal)rigen.sis — young* F 



Uana catesbeana — adult F 



Funu'ces quinquilineatifs 



Storeria occi])itoniaculata '..... 



Heterodon ])latyrliinos 



Natrix sipt'don F 



Tlianinojihis sauritus C 



'riiainnoijhis sirtalis C 



Liopeltis vernalis 



Diadophis rcgalis 



Tt'rrapene Carolina 



I.anipropeltis doliatus triangulus 



' = .see annotated list. 



c 





dependent upon these amphibians, feeding upon them occasionally or 

 u))on other reptiles which in turn feed upon these amphibians. None of 

 the primary ampliibian species depend upon reptiles for food to any 

 large extent, although some species as the bullfrog and greenfrog occa- 

 sionally eat snakes. The primary amphibians however contribute to the 

 food of each other in a measure as tadpoles and small fi'ogs are eaten In- 

 large frogs as o})portunity offers. 



As the primary amphibian species are egg-laying forms, three types 

 of habitats were considered in determining tlie habitat preferences of 

 these species, ( 1 ) habitats of adults, those in whicli the adult animals 

 were found. (2) transitional habitats, tliosc in which the juvenile in- 

 dividuals were found, and (3) habitats of larvae, those in which the eggs 

 were laid and the larvae developed. On the basis of habitat preferences 

 the seven primary amphibian species were divided into three series, (1) 

 those species which lay their eggs in the water and pass their larval life 

 there, but as adults live cither in or near the water, ( li ) those species 



