MAMMALIA 



13s 



an exaggerated' Cavy specialized for an aquatic life, as testified 

 by its webbed feet. It inhabits the great rivers of South 

 America, and is not unlike a small pig in general appearance and 



Fig, 95 — The Unau or Two-toed Sloth [Cholaptts didaciylus) 



size. The writer well remembers seeing a tame specimen, which 

 had escaped from the grounds of its owner and swum down the 

 Teign estuary to Teignmouth, being exhibited in the lifeboat- 

 house there as " a pigfacious hippopotamus ". 



