298 APPENDIX. 



Greatest diameter of the same (transverse) 1 -00 



Antero-ijosterior diameter of same .70 



Heiglit of jaw at gonys 3 .00 



Height of jaw at posterior tooth 4 .00 



Length to coronoid process from, tip 25 .50 



Width at posterior end of symphj'sis 7 .50 



Thickness of ramus at seventh joair of teeth from tip 2 .50 



Number of teeth on each side, 12. 



Orca ater, var. fusea. PI. xvii, fig. 3. 



A variety (?) of tlie above, witlr a lower falcate dorsal, with the belly, spots, and crescent of 

 a yellowish cream color, instead of white and maroon, rejiorted by Scammon from similar localities, 

 may take the above varietal name until more material in regard to it is obtained. An Orca, under 

 the name of jDelphinun orca, is reported by Chamisso from the North Pacific and Kamchatka ; very 

 likely one of the above mentioned forms. 



Orca paeifica. 



O. capensis, Gray, 18G8, p. 8, pi. 9. 



Ophysia paeifica, Gray, P. Z. S. 1870, p. 76 ; 1871, p. 93. 



Skull only, B. M. Eeported by Gray to be probably from the South Pacific or Chile, but 

 originally stated to be from the North Pacific. I can see no grounds for separating this from 

 Orca, even subgenerically. 



Genus PhOCSena, Gray. 

 Plioccena, Gray, 18G6, p. 301 ; 1871, p. 81. 



Phocsena vomerina. PL xviii, fig. 2-4. 



P. vomerina. Gill, Proc. Phil. Acad. 1865, p. 178; Cope, 1. c, 1869, p. 24; Scammon, 



1. c, p. 54. 

 Bay Porpoise, of Scammon. 



San Francisco, California. 



Full material, skulls and skeleton, Mus. S. I. Figures and photographs from nature, and 

 measurements. Eight blunt spines were noticed by me on the dorsal of a specimen of this species 

 obtained m the harbor of San Francisco, February 8th, 1873. A dark line extended from the 

 corner of the mouth to the pectorals. The belly was white, shading gradually into dark slate 

 color on the back. The teeth in this species vary considerably in their shape, in some specimens 

 being spade shaped, in others nearly tricuspid, and in still others truncated squarely. 



Genus Sagmatias, Cope. 

 8agmatias, Cope, Proc. Phil. Acad. 1866, p. 294. 



Sagmatias amblodon. 



S. amblodon. Cope, Proc. Phil. Acad. 1866, p. 294. 



South Pacific? TJ. S. Ex. Exp. 



No triangle. Teeth "numerous," rounded, obtuse, stout. Skull, 15.25 inches. End of beak 

 to notch, 7.6 inches. Width at notch, 3.79 inches. Allied to Phocaina. Skull only, S. I. 



