PHOCAENA. 



ORCINUS 



Measurements. Total length, 1727; length of mouth, 121; end 

 of snout to dorsal, 737; length of pectoral, 178; height of dorsal, 

 I02: width of flukes, 31.7. Skull: total length, 293; length of ros- 

 trum, 137; width of beak at base. 85; at middle, 55: interorbital 

 breadth, 137; length of temporal fossa, 6. 



2Q. dalli. {Phoctena), True, Proc. U. S. Nat. Mus. Wash., 1885. p. 95, 

 pis. 2-6. 



J'ype locality. Strait west of Adakh Island, Aleutian group. 



Geogr. Dislr. North Pacific Ocean, Alaska; Aleutian Islands. 



Genl. Char. Lower jaw longer than upper. Head sloping, dor- 

 sal fin moderate, falcate, placed anterior to middle of total length, 

 anterior margin with small tubercles. Dorsal and ventral margins of 

 body with prominent ridges, teeth small; vertebrao, 97. 



Fig. 7. Phoccena dalli. 

 From True. Kev. Delphinida-. Drawinn by \V. H. Dall. 



Color. Black: belly and lower half of sides from anterior margin 

 of dorsal to behind vent, white streaked with fine dark lines. Dorsal 

 tipped with white. 



Measurements. Total length, 1S29: tip of snout to dorsal, 698; 

 length of mouth, 88: of pectoral, 203; height of dorsal, 152; breadth 

 of flukes, 47. Skull: total length, 333: length of beak, 140: breadth 

 at base, 95; at middle, 57; interorbital breadth, 165: length of tooth 

 line, 127: depth of temporal fossa, 25. 



1 7. Orcimis. 



■^^'^ =48. 

 12—12 ^ 



Orcinus l-'itzin. VViss-Populaire Naturgesch, Siiugeth., i860, vi., pp. 



204, 217. Type O. gladiator, Bonnat. 



