except the last, which has two. Sometimes, however, all the upper 

 molars have four cusps. First digit of manus longest. 



535. hispida. {F/wco), Schreb. Saugth., iii, 1776, p. 312, pi. Ixxxvi. 

 faetida, Fabricius, Mull. Zool. Dan. Prod., 1776, viii, desc. null. 

 anneleta, Nilss. Skand. Faun., 1820, i, p. 262. 



discolor, F. Cuv. Mem. du Mus. , 1824, xi, p. 186. 



schreberi. ct frederici, Less. Diet. Class., d'Hist. Nat., xiii, 1828, 

 pp. 414-416. 



dimidiatus, Gray, Cat. Seals and Whales, 1866, p. 22. 



Type locality. Greenland. 



Geogr. Distr. Circumpolar; south to Labrador on American 

 coast of Atlantic Ocean, and northern shores of Bering Sea on the 

 Pacific coast. 



Genl. Char. Size moderate. First digit of manus exceeds all 

 the others in length; teeth small, separated by diastema. Facial 

 portion of skull short, narrow, tapering uniformly. Superior outline 

 of skull flat. 



Color. Above blackish brown, darkest on back; sides lighter, 

 with large oval whitish spots; beneath yellowish white. Ring around 

 eye black; bristles blackish. Pattern and coloring varies among 

 individuals. 



Measurements. Male. Total length, 1560; female, 1380. Di- 

 mensions vary considerably. 



E. Pagoptilus. 

 Teeth small, separated; muzzle narrow, lengthened, attenuated; 

 superior outline of skull flat; mandible very slender; rami thin and 

 broad, inferior borders curving inward. 



536. groenlandica. {Plioca), Fabricius, Mull. Zool. Dan. Proc, 



1776, viii. 

 nigra, Kerr Anim. Kingd. , 1792, p. 125. 



oceanica, Lepech. At. Acad. Petrop., 1777, i, p. 295, pis. vii, viii. 

 semilunaris, Bodd. Elench. Anim., 1785, p. 170. 

 alhicauda, Desm. Mamm. Suppl., 1822, p. 839. 

 lagura, G. Cuv. Oss. Foss., 1825, v, p. 206 (juv.). 

 mulleri, desmaresii, et pilayi. Less, Diet. Class. Hist. Nat., 1828, 



xiii, pp. 413, 416. 

 dorsata. Pall. Zoog. Rosso-Asiat., 1831, i, p. 112. 

 albini, Alex. Mem. Ac. Torino, 1850, 11, p. 141, pis. 1-lv. 

 annelata, Gaimard (nee Nills), Voy. Isl., Atlas, i85i,pl. xi, fig. 9. 

 Type locality. Greenland. 



