584 DELPHINUXS;.' 



Snout long and compressed ; pectoral and dorsal fins falcate and 

 of similar size, the pectorals long, nearly | of the total length ; caudal 

 ridges prominent. 



Teeth about g (varying from 23 to 28). Rostrum less than f 

 length of skull; its breadth at the middle about l its length. 

 Pterygoids close together on median line, but not in contact. 

 Symphysis less than ^ length of mandible. 



Colour. Upper parts dark plumbeous grey, almost black upon the 

 fins, becoming paler on the sides and passing into pinky ashy 

 grey, with a few small irregular darker blotches, on the breast and 

 abdomen. 



Dimensions. Total length of an adult female 6 ft. 10 in.* ; tip 

 of snout to dorsal fin 36 inches ; length of base of dorsal 13, length 

 of anterior margin of dorsal 16, of pectoral 18; expanse of tail- 

 flukes 22 (Owen). Skull 17 inches long, rostrum 10, breadth of 

 skull between orbits 6' 75. 



Distribution. Indian Ocean. Recorded from Vizagapatam and 

 Karachi in India, and from Australia. 



Mr.W. L. Sclater has sent to me the rostrum of D. perniger from 

 the type skin preserved in the Museum, Calcutta (the rest of the 

 skull is not preserved). I have compared this rostrum with that 

 of the typical skull of S. gadamu in the British Museum, and find 

 the two identical. 



392. Steno lentiginosus. The speckled Dolphin. 



Delphinus (Steno) lentiginosus, Owen, Tr. Z. S. vi, p. 20, pi. v, figs. 



2,3. 

 Sotalia lentiginosa, Fkwsr, P. Z. S. 1883, pp. 489, 513 ; True, Del- 



phinidce, pp. 15, loo, pi. ii, fig. 3 ; W. Sclater, Cat. p. 325. 

 Delphinus leutiginosus, Sterndale, Jour. Bombay N. H. Soc. ii, 



p. 51. 



Bolla gadimi, Tel. 



General form similar to that of S. perniyer, but with smaller and 

 less falcate pectoral and dorsal fins and the tail-flukes wider from 

 front to back. The dorsal fin is longer at its base, being about f 

 of the total length. Length of pectoral about g of total. Caudal 

 ridges prominent. 



Teeth about jg. Breadth of rostrum at the middle % its length . 



Colour. "Pretty uniformly bluish cinereous or slaty, freckled 

 with irregular small spots of brown or plumbeous pigment, the 

 streaks longitudinal and flecked with white (Owen, probably from 



* Unfortunately it is not stated whether the measurements were made on 

 the animals by Sir W. Elliot, or merely calculated from the drawings by Sir 

 R. Owen. The same remark applies to the dimensions of 8. lentiginosus and 

 S.maculii'enter. I have been unable to trace the original drawings. 



