1936] MAMMALS OF OREGON 345 



MBSQPLODON STEJNEGERI TEUE 



STEJNEGER'S BEAKED WHALE 



Mesoplodon stejnegeri True, U. S. Natl. Mus. Proc. 8 : 585, October 19, 1885. 

 . Skull collected on Bering Island, Commander Islands, Bering Sea, 



by Leonard Stejneger; cataloged February 2, 1884. 



General characters. Size small, about 17 feet long; body thickest in middle 

 (pi. 49, B), head small with slender beak or mandibles, the lower longest; 

 pectoral fins small and near head, dorsal fin small and well back; tail flukes 

 broad; mandibles narrow; upper toothless, lower with one large flat tooth or 

 tusk about the middle of each ramus, no other teeth ; eyes small, low on sides 

 of head. 



Measurements. Total length, about 17 feet; head, 32 inches; anterior edge 

 of teeth 6 1 /-} inches from tip of jaw; width of tooth, 3 inches; thickness 

 of tooth, three-quarters of an inch ; height of tooth along anterior edge, about 

 (5 inches. 



Distribution and habitat. Known only from the type skull from 

 Bering Island and from one complete individual washed ashore on 

 the beach near Newport, Yaquina Bay, Oreg., about February 15, 

 1904. 



Through J. G. Crawford, of Albany, Oreg., David Starr Jordan, 

 of Stanford University, and F. \V. True, of the United States Na- 

 tional Museum, were promptly informed of a strange little whale 

 that had washed ashore on the beach at Yaquina Bay. The descrip- 

 tion and photographs furnished by Crawford indicated that the 

 whale belonged to this rare species, previously known only from 

 a skull, and aroused great interest among students of marine mam- 

 mals. Measurements and many of the external characters of the 

 species were obtained, and the skull was finally secured for the United 

 States National Museum collection. 



As yet there is no record of the living animal, and nothing is 

 known of its habits or range beyond these two records, but it belongs 

 to a world -wide group or family of the rarest and least known of 

 the cetaceans. 



Family DELPHINIDAE: Porpoises; Dolphins 



DELPHINUS DELPHI S LINNAEUS 

 COMMON DOLPHIN; BAIBD'S DOLPHIN 



[I)cl])him's] delphis Linnaeus, Syst. Nat. ed. 10, v. 1, p. 77, 1758. 

 Dr'/thinus bairdii Dall, from Point Arguello, Santa Barbara County, Calif., 

 1873. 



Type locality. European seas. 



General characters. Form slender with long narrow beak or jaws, each welt 

 set with a row of 80 to 120 slender, conical teeth (pi. 49, D) ; pectoral fins 

 narrow; dorsal triangular; tail flukes broad. Top and sides of head black; 

 back, fins, and flukes greenish black; sides gray; belly and throat white. 

 Length of adult 6 or 7 feet ; weight 100 to 160 pounds. 



Distribution and habitat. If the Pacific form bairdii proves sep- 

 arable from the Atlantic delphis, as seems highly probable, its range 

 as given by Scammon (1874, P- 99) would be the Pacffic coast of 

 North America. 



TURSIOPS GILLII DALL 



COWFISH 

 Tvntiops uiim Dall, Calif. Acad. Sci. Proc. 5 : 13, 1873. 



'I'tfpe. One mandible only collected at Monterey, Calif., by C. M. Scammon 

 in 1871. 



