20 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



Choloepus hoffmanni Peters. 



Five specimens, both sexes, young and adult, Boquete, 4,000 to 4,800 feet, 

 and Bogaba, March, April, and July. 



Cyclopes dorsalis (Gray). 



Nine specimens, both sexes, young and adult. Divala and Bogaba, Decem- 

 ber and July. 



Although in September, 1900, Dr. Oldfield Thomas pointed out anew the 

 differences between the Central American C. dorsalis and the typical C. didac- 

 tylus of Guiana, and though it had stood in Trouessart's Catalogue as a sub- 

 species, it is omitted by Miller and Rehn in their recent list. 



Uroleptes sellata (Cope). 



Two specimens ; adult 9 » Divala, December ; adult $ , Volcan de Chiriqui, 

 5,000 feet. May. 



Myrmecophaga tridactyla Linn. 

 One adult, Divala, December. 



Tayassu crusnigrum, sp. nov. 



Type. — Mus. Comp. Zoul., No. 10,163. Young ad. ^ , Boquete, April 13, 1901, 

 4,000 feet. 



Three specimens, both sexes, one young, one young adult, one old adult, 

 Boquete, 4,000 to 5,800 feet, March and April. 



Characters. — Probably nearest to T. angulatus humeralis Merriam (Mexico, 

 Colima to Tehuantepec), but much darker throughout ; legs and arms almost 

 wholly black ; dorsal black band wide ; shoulder stripes wide and conspic- 

 uous, tawny in color; pelage rough and coarse ; skull wider above and 

 narrower below; rostral portion wider; palate much narrower, tooth rows 

 nearer together. 



Color. — Legs, arms, central dorsal, and central ventral stripes, black; rump 

 mostly black, a few of the hairs (bristles) annulated with tawny ; conspicuous 

 shoulder stripes, tawny; sides of head and of body, mixed tawny and black; 

 all the hairs annulated with these colors ; hairs on outer surface of ears mostly 

 black, those on inner surface mostly tawny, the general effect being that of a 

 very dark, richly colored peccary. 



