142 



HERPETOLOGY OF MICHIGAN. 



dead clams, decaying- tortoises, worms, meat, and aquatic insects. 

 They even capture the soft and defenseless young of Aspldonectes 

 [Platypeltis] .^' The same writer describes the egg-laying as fol- 

 lows : "The method of nest-making is essentially like that de- 



Fig. 48. Distribution of Chrysemys cinerea. 

 Horizoural ruling, specimens examined : vertical ruling, reports only. 



scribed for Graptemys, but the flask-like enlargement is much less 

 pronounced. This may be due to the smaller number of eggs laid 

 and the consequent economy of space. The nesting season is about 

 the same as for Graptemys and the choice of nesting places about 

 the same. They lay only four to eight eggs that are strikingly like 

 those of Graptemys in color, shape and character of shell. In size, 

 however, they are somewhat smaller. 



