376 



FOREST AND STREAM. 



[May 80, 1889, 



American Pinnipeds," 1880 Van Beneden, P. J., "Osaements fos- ( M. tropicalis), Smithsonian Rep.. 1884, pt. II., p. 831. True, F. W., Alaska, 1 ' 1882: also bv same author Darts treatins of seals and 



187? Trtte^ F S W P in(ll S Kff„^ y^ifoty^^J®^ l™> U S.Nat.Mns.. 1884, walruses, in"The FiK 



18(7. Hue, t> . w. and Lucas, F . A., O n the West Indian Seal" ' p. 417. Elliott, H. W., "A Mon graph of tue Seal Islands of 1 States," 1884, 2 vols. 



PROFILE AND OTHER VIEWS 



Fig. 1.— Left lateral view of the skull of the Northern fur seal 

 or sea bear (CaUorMnw msimw); ? , rather young, about % natu- 

 ral size; after ALen. 



Fig. 2 -Same view of the skull of the West Indian seal (Mon~ 

 achus tropieaUs); % natural shse; after True and Luoas. 



Fig. 3.-Same view of the skull of the hooded seal (Oustophora 

 cristata); % natural size; after Allen. 



THE SKULL OF NORTH AMERICAN PINNIPED1A. DEAW by the Author. 



Fig. 4 -Same view of the skull of the California seal-elephant 

 (Macrorhinits angiistirostris); }4 natural size; after Allen. 



Fig. 5 -Same view of the skull of the Pacific walrus (Odobasnue 

 obesiis), considerably reduced; after Allen. 



Fig. 7.— The same view of the skull of the Pacific walrus (0. 

 obeme); similarly reduced; after Allen. Figs. 3 ar.d 7 go tc sho.v 

 certain fac.al differences in the skulls of these two waLuses, th 

 Atlantic and Pacific coast forms. 



Fig. 6,-Direct anterior view of the skull of the Atlantic walrns ^USloter °' ^ *" ^ C ° mm ° n a *° 8 * 

 (O. romumu); very much reduced ; after Allen. ~f atler * 10 wer ' 



Fig. — Left lateral view of the skull of the harbor seal (P, 

 vitvlina)\ very much reduced; after Flower. 



