8 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Superorder MONODELPHIA 
Order EDENTATA. 
Family BRADYPODIDAE. 
Genus CHOLOEPUS Illiger. 
« 
# _ 
1811. Choloepus Illiger, Prodr. syst. mamm. et avium, p. 108. 
Type.— Bradypiis cUdactyhis Lixnaeus. 
* Choloepus hoffmanni Peters. . 
1858. Choloepus hojfmanni Peters, Moiiatsber. k. preuss. 
Akad. Wissensch. Berlin, p. 128. 
1885. Gholopus hojfmani True, Proc. U. S. nat. mus., vii 
(1884), p. 588. *1885. 
Type locality. — Costa Rica. 
Genus BRADYPITS Linnaeus. 
1758. Bradypus Linnaeus, Syst. nat., x ed., i, p. 34. Type.— 
Bradypus tridactylus Linnaeus. 
*Bradypus castaneiceps (Gray). 
1871. Arctopitheeus eastaneicexjs Gray, Proc. zool. soc. Lon¬ 
don, p. 444. 
1882. Bradypus castaneicejys Alston, Biol. Centr.-Amer., 
mammals, p. 184. 
1885. Bradypms eastaneiceps True, Proc. LT. S. nat. mus., 
VII (1884), p. 588. 1885. 
Type locality. —Cliontales, Nicaragua. 
*fBradypus infuscatus Wagler. 
1831. Bradypus inf uscatus Wagler, Isis, p. 611. 
