CETACEA. 125 



"Gregarious, swimming very rapidly around the ships and 

 boats. 



" Length 6 feet from nose to tail." Forster. 



This species resembles, in the distribution of its colouring, 

 the Dauphin a bandfauve (Voy. Pole Sud], but the band on the 

 side is whitish, not fulvous. 



20. DELPHINUS SAO. The SAO. 



Skull : beak elongate, shelving on the sides, with central car- 

 tilage near half its length in front ; triangle to the teeth-line ; 

 teeth -rf-~M> small, cylindrical, hooked ; palate flat in front, with 

 a broad groove extending nearly half its length behind ; inter- 

 maxillaries and palatine distinct, former broad in front; lower 

 jaw slender, shelving, and flat-sided in front. Length 17'0, 

 teeth-line 8'9, beak 1O6, width at notch 37. 



Inhab. Madagascar, Dussumier, 1838. Skull, Mus. Paris. 



ft Beak of skull twice as long as the brain-cavity. Teeth |f f. 



21. DELPHINUS LONGIROSTRIS. The CAPE DOLPHIN. 



Black; dorsal fin large, high; teeth f-f-fg; nose f of entire 

 length ; skull nearly 3J times the length of its breadth at the 

 notch. 



Delphinus longirostris, Gray, Spic. Zool. t. ; Cuv. R. A. i. 



288, from Dussumier, MSS. Schlegel, Abh. 1. 1, 2 & 4. f. 1, 



from skull of Brooks, Faun. Japon. t. 24 ; Gray, List Mam. 



B. M. 105 ; Zool. Erebus fy Terror, 42. 



D. Capensis, Gray, Spic. Zool. ii. t. 2. f. 1, not Cuv. nor Rapp. 

 Inhab. Southern Ocean. Cape of Good Hope, Gray. Japan 



and Ceylon, Schlegel. Malabar, Dussumier. 



a. Stuffed specimen. Cape of Good Hope. Presented by the 

 Trustees of the College of Surgeons. The specimen figured and 

 described in Spic. Zool. and Zool. E. 4* T. 



in. 



Length, entire 81 



of beak 7 



to angle of mouth .... 13 



to blowers 7 



to dorsal fin 38 



to pectoral fin 21 



of dorsal 12 



of pectoral 13 



Breadth of pectoral 5 



of tail 2f> 



Circumference 42 



