660 U. S. NATIONAL MUSEUM BULLETIN 205 



Slipp, Araer. Midi. Nat., vol. 39, No. 2, p. 269, March 1948), and 200 miles off 

 Cape Mendocino, Calif. (True, U. S. Nat. Mus. Bull. 36, pp. 81, 169, Aug. 8, 

 1889). 



Genus LAGENORHYNCHUS Gray 



1846. Lagenorhynchus Gray, Ann. Mag. Nat. Hist., vol. 17, p. 84, February 

 1846. (Type, Lagenorhynchus albirostris Gray.) 



Lagenorhynchus albirostris Gray* (white-beaked porpoise) 



1846. Lagenorhynchus albirostris Gray, Ann. Mag. Nat. Hist., vol. 17, p. 84, 



February 1846. 

 1884. Lagenorhynchus albirostris True, Proc. U. S. Nat. Mus., vol. 7 (App., 



Circ. 29), p. 589, Nov. 29, 1884. 

 Type Locality. — Great Yarmouth, England. Range. — In western North At- 

 lantic recorded from Iceland (Saemundsson, Mammalia, in Zoology of Iceland, 

 vol. 4, pt. 76, p. 19, 1939), Davis Strait and west Greenland (Degerb0l, Medd. 

 om Gr0nland, vol. 88, No. 3, p. 12, 1936) . 



Lagenorhynchus acutus (Gray)* (white-sided porpoise) 



1828. Delphinus (Grampus) acutus Gray, Spicilegia zoologica, . . . , pt. 1, 



p. 2. 

 1846. Lagenorhynchus acutus Gray, in The zoology of the voyage of H.M.S. 



Erebus and Terror, . . . , vol. 1, pt. 3, p. 36. 

 1876. Lagenorhynchus perspicillatus Copef, Proc. Acad. Nat. Sci. Philadel- 

 phia, vol. 28, p. 136. (Woods Hole or Cape Cod, Mass. See True, in Poole 

 and Schantz, U. S. Nat. Mus. Bull. 178, p. 110, Apr. 9, 1942.) 

 1876. Lagenorhynchus gubernator Copef, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 28, p. 138. (Casco Bay, near Portland, Maine. See True, in Poole 

 and Schantz, U. S. Nat. Mus. Bull. 178, p. 109, Apr. 9, 1942.) 

 Type Locality. — Unknown. Range. — In western North Atlantic recorded from 

 south Greenland (Brown, Proc. Zool. Soc. London, 1868, pt. 3, p. 549, March 

 1869) south to Cape Cod, Mass. (True, U. S. Nat. Mus. Bull. 36, pp. 87, 169, 

 Aug. 8, 1889). 



Lagenorhynchus obliquidens Gillf * 



1865. Lagenorhynchus obliquidens Gill, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 17, p. 177. 



1884. Lagenorhynchus obliquidens True, Proc. U. S. Nat. Mus., vol. 7 (App., 

 Circ. 29) , p. 589, Nov. 29, 1884. 



Type Locality. — Pacific Ocean, near San Francisco, Calif. Range. — In eastern 

 North Pacific from Valdez (Swan Point) and Montague Strait, Prince William 

 Sound, Alaska, southward off coasts of Washington, Oregon, and California to 

 Ballenas Bay, Baja California (Scheffer, Amer. Midi. Nat., vol. 44, No. 3, p. 750, 

 November 1950). 



Lagenorhynchus thicolea Gray 



1849. Lagenorhynchus thicolea Gray, Proc. Zool. Soc. London, 1849, pt. 17, 



p. 2, Dec. 11, 1849. 

 1884. Lagenorhynchus thicolea True, Proc. U. S. Nat. Mus., vol. 7 (App., Circ. 



29), p. 589, Nov. 29, 1884. 

 Type Locality. — Stated to be western coast of North America. 



