NORTH AMERICAN RECENT MAMMALS. 499 



t*Tapirella bairdii (Gill). 



1865. Elasmognathiis hairdii Gill, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 183. 



1885. Elasmognathus hairdii True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 593. 1885. 



1904. [Tapirella] hairdi Elliot, Mamm. Mid. Amer. and West 

 Indies, pt. 1, p. 87. 



Type Locality. — Isthmus of Panama. 



t*Tapirella dowii (Gill). 



1870. Elasmognathus dowii Gill, Amer. Jour. Sci. and Arts, 

 vol. 50, p. 142. 



1885. Elasmognathus dotvii True, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 593. 1885. 

 1904. T[a'pirella] dowi Elliot, Mamm. Mid. Amer. and West 



Indies, pt. 1, p. 87. 

 Type Locality. — Guatemala. 



Order XENARTHRA. 



Family BRADYPODID^. (Three-toed sloths.) 



Genus BRADYPUS Linnaeus.'^ 



1758. Bradgpus Linn.eus, Syst. nat., ed. 10, vol. 1, p. 34. 

 Tjrpe, Bradypus tridactylus Linn^us. 



*Bradypus castaneiceps (Gray). 



1871. Arctopithecus castaneiceps Gray, Proc. Zool. Soc. London, 

 p. 444. 



1882. Bradypus castaneiceps Alston, Biol. Centr.-Amer., mam- 

 mals, p. 184. 



1885. Bradypus castaneiceps True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 588. 1885. 



Type Locality. — Chontales, Nicaragua. 



*Bradypus griseus (Gray). 



1871. Arctopithecus griseus Gray, Ann. and Mag. Nat. Hist., 



ser. 4, vol. 7, p. 302. April, 1871. 

 1885. Bradypus infuscatus True, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 588. 1885. (Not of Wagler, 1831.) 

 1891. Bradypus griseus Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 3, p. 216. April 17, 1891. 

 Type Locality. — Cordillera de Chucu, Veragua, Costa Rica 



(or Panama; boundary in dispute). See Gray, Proc. Zool. 



Soc. London, 1871, p. 446. 



" "Notes" on this genus (essentially a revision) were published by Thomas, Ann. and Mag. Nat. Hist., 

 ser. 8, vol. 19, pp. 352-357, April, 1917. 



