86 



Lagenoehtkchus ciEEULEO-AiBus, Meyen. The Bluisli-white Dolphin. 



Synonyms — Delplimus cceruleo-alhis, Meyen. 



Lagenorhynclius caruleo- alius, Gray, S. and "W., p. 268. 

 Belphinus alhirostratus, Peale, Expl. Exped. 



Teeth 55^, ahout six in an inch. 



Colour, " the hack hluish, sides white, with ohlique bluish streaks, 

 beUy white," in other specimens " dark blue-grey ; fins and back nearly 

 black ; a dark line connects the corners of the mouth with the pectoral 

 fins ; front and sides dark grey, covered with small vermicular white 

 spots ; end of snout, white ; commissure of the lips pale yellow." 



Length from five and a half to sis and a half feet. 



Inhab. Pacific Ocean. East Coast of South America. 



La&en-oehtnchtjs ? iNTEBMEDiTjs^ Gray. The Small Killer. 



Synonyms — Delphinus intermedius, Gray, Ann. Phil., 1827. 

 Orca intermedia, Gray, S. & "W., p. 283. 

 Feresa intermedia. Gray, Supp., p. 78. 



11-11 



Teeth niji, long, conical. 



Erom a single skull in the British Museum. 



Genus Obcaeila,^ Gray. 



" Head blunt, rounded, very convex ; body moderate ; dorsal fin 

 moderate ; pectoral fin broad. Skull : brain case, sub-globular ; beak 

 very short, about f of the entire length of the skull, tapering, flat above ; 

 palate flat in front ; rostral triangle very large, produced much in 

 front of the maxiUary notch ; lower jaw projects beyond the upper one; 

 symphysis short ; teeth small, slender, conical." 



Orcaella beevibosteis,' Owen. The Short-beaked Killer. 



Sjnonjm&^FJiocana hrevirostris, Owen, Trans. Zool. Soc, vol. vi,p. 24. 

 Orca hrevirostris, Gray, S. & "W., p. 285. 

 Orcaella hrevirostris. Gray, Suppl., p. 80. 



Teeth jjiij, slender, conical. 



Black ; body stout ; dorsal fin sub-centrical. 



Inhab : estuaries of the Ganges ; Madras. 



This species was first desciibed in 1S66, by Professor Owen, from the 

 skull of a young animal, which was cast ashore in the harbour of 

 Vizagapatam, on the east coast of India ; but since this period it has 

 been observed by Dr. Anderson and Mr. Elliott. It is remarkable for 



^ Intermediate. 



' DiminutiTe of Orca. 



" brevis, short, aiid rostrum, beak. 



