CHELYDIDAE 



40; 



food, and retiring into the pond to swallow it. When left to 

 themselves they are rather nocturnal in their feeding habits. 



Fig. 90. — (Jhckdina loiujicollis (Australutu loiig-uecked Chelodiues). x \. 



Now and then they tuck themselves away for weeks without 

 feeding, for instance when they go through a regular term of 



