Vol. XXV, pp. 189-190 December 24, 1912 



PROCEEDINGS 



of Tin: 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW PECCARY FROM COSTA RICA. 



P.Y E. A. GOLDMAN. 





While engaged in identifying mammals from Middle America 

 the following unnamed race of the white-lipped peccary has 

 been detected in the collection of the U. S. National Museum. 

 The new form is based on a splendid series of 14 skulls and 5 

 hunter's skins collected by Prof. William M. Gabb at Tala- 

 manca, Costa Rica, nearly 40 years ago, and now kindly placed 

 at my disposal by Mr. Gerrit S. Miller, Jr., Curator of 

 Mammals. The specimens had been long ago assigned to Dicotyles 

 labiatus Cuvier, now regarded as a synonym of typical Tayassu 

 albirostris (Illiger), which is restricted to South America. 



Tayassu albirostris spi rattens subsp. nov. 

 COSTA RICAN WHITE-LIPPED PECCARY. 



Type from Talamanca, Costa Rica, No. If!!"-, adult (hunter's skin and 

 skull), U. S. National Museum, collected by William M. Gabb in 1874. 



General characters. — Similar to Tayassu albirostris ringens in size and 

 color, but white facial area more extensive, reaching in some specimens 

 nearly to eyes; skull differing in important details, especially the broader 

 molars and smaller first lower premolars. Differing from Tayassu albi- 

 rostris albirostris in the more highly arched median frontal outline of 

 braincase, anteriorly narrowed lower premolars, and more evenly taper- 

 ing mandibular toothrows. 



Color. — General color of upper parts varying from nearly pure black to 

 black coarsely and rather inconspicuously mixed with tawny, the black 

 purest along the median line and over lower part of back and rump, and 

 the tawny annulated hairs appearing mainly on top and sides of head, 

 sides of neck, shoulders and flanks; under parts blackish, becoming in 

 some specimens grizzled grayish on pectoral and inguinal regions; top 

 and sides of muzzle, chin and a triangular area extending posteriorly 

 from angle of mouth along cheeks, narrowing to a point nearly under 

 ears, white or yellowish white, this color more or less mixed with black 



36— PROC. BIOL. SOC. Wash., Vol. XXV. 1912. (189) 



