78 U.S. NATIONAL MUSEUM BULLETIN 24 6 



Journ., 5: 293 [N. Pacific: Sarawak]. — Fraser and Purves, 1960, 

 Bull. Brit. Mus. (Nat. Hist.), Zool., 7: 51 et seq., pi. 32 (skull) [audi- 

 tory system]. 



Orcaella brevirostris, Van Beneden and Gervais, 1880, Osteographie des 

 cetaces, p. 550, text fig. (animal), pi. 64 (skull) [Cambodia (Mekong 

 River, 260 miles above mouth) ; fluminalis probably conspecific]. 



"Dolphin of the Irawady," Anderson, 1870, Proc. Zool. Soc. London, 

 1870: 220; 1871, Proc. Zool. Soc. London, 1870: 544. 



Orcaella brevirostris brevirostris, Ellerman and Morrison Scott, 1951, Palae- 

 arctic mammals, p. 738 [classification]. 



Orcaella fluminalis Gray, 1871, Suppl. Cat. seals and whales Brit. Mus., 

 p. 80 [Burma (type locality: Irrawaddy River); type an articulated 

 skeleton, British Museum, no. 14546-77.12.10.17; purchased 1877 

 from J. Anderson (cf. Flower, 1885, List Cetacea Brit. Mus., p. 17)]. 



Orcella fluminalis, Anderson, 1871, Proc. Zool. Soc. London, 1871 (June): 

 143, fig. 2 (animal) [Burma (Irrawaddy River from sea to 300-900 

 miles upstream)]. 



Orcaella brevirostris fluminalis, Ellerman and Morrison-Scott, 1951, Check- 

 list of Palaearctic and Indian mammals, p. 738 [classification]. 



Type: Skull, British Museum, no. 1454a; collected by Sir Walter Elliot. 

 Type locality: Harbor of Vizagapatam, Madras, Bay of Bengal, India. 

 Distribution : The same as for the genus. 



Genus PSEUDORCA Reinhardt 



Pseudorca Reinhardt, 1862, Overs. Danske Vidensk. Selsk. Forh., 

 p. 151.— Flower, 1884, Proc. Zool. Soc. London, 1883: 507 [char- 

 acters]. — Kellogg, 1928, Quart. Rev. Biol., 3: 33etseq. [history; relation- 

 ships]. — Winge, 1942, Interrelat. Mamm. Gen., 3: 308 [characters; 

 classification]. 



Neoorca Gray, 1871, Suppl. Cat. seals and whales Brit. Mus., p. 81 [sub- 

 genus of Pseudorca Reinhardt; type species: Pseudorca meridionalis Gray 

 (=Orca meridionalis Flower), by monotypy]. 



Type species : Pseudorca crassidens Owen, by original designation. 



Distribution: Eastern Atlantic: from North and Baltic Seas to Medi- 

 terranean and Cape of Good Hope ; western Atlantic : from North Carolina 

 to Caribbean Sea and Buenos Aires, Argentina; eastern Pacific: from 

 Washington to Guerrero, Mexico, and Paita, Peru; western Pacific: from 

 Japan to Australia, Tasmania, and New Zealand; Indian Ocean (Ceylon; 

 southern India). Tomilin (1957, Mammals of eastern Europe and northern 

 Asia, 9: 641) includes Davis Strait, North Atlantic, in the range, citing as 

 authority Miller (1921, Proc. U.S. Nat. Mus., 57: pis. 27-31). The latter, 

 however, pointed out that this record is an error originating in a misinter- 



