5. LAGENORnYNCmjS. 267 



back nearly black ; a dark line connects the corner of the mouth 

 with the pectoral fin ; front and sides dark grey, covered with small 

 vei-niicular white spots ; end of the snout white, commissure of the 

 lips pale yellow. 



Inhab. Pacific Ocean, lat. 2° 47' S., long. 174° 13' W., 22 Aug. 



8. ? D. Bertini, Desm. Mamm. 516, froin Dauphin de Bertin, Dtiham. 

 Pech. ii. 41. 1. 10. f. 3 ; Graij, Cat. Cetac. B. M. 132. 

 Cachalot, junior, Blainv. 



Beak distinct; lower jaw toothless. 

 Inhab. ? 



The following species have been named and figvired by the sight 

 caught of them when swimming ! (see Gray, Cat. Cetac. ^. M. 1850, 

 133) :— 



D. albigenas, Quoy, I. c. t. 11. f. 2. 



D. rhinoceros, Quoy, I. c. 1. 11. f. 1, both from New Holland. 



D. lunatus, Lesson, Voy. Coq. t. 9. f. 4, Tmienas of the Chilians, from 



Chili. 

 D. leucocephalus, D. minimus, et D. maculatus, Lesson, Voy. Coq. i. 183. 



The following species have been named only from figures or very 

 slight descriptions : — 



D. Senedetta, D. Conunersonii, D. niger, et D. Pemettii, Lacep. 

 D. Epidon et D. Mongitori, Rajinesque. 



The Porpoises come up the backwaters of the coast of South Mala- 

 bar, in March, when they are salt, but the Susu I do not think is 

 known her^.—liev. H. Bal-er of AUjii, South Malabar; and Blytli. 



Lacepede described from a Chinese drawing (Mem. Mus. iv. 475) 

 DeJphinus niger, black, with white edges to the lips and fins. 



Mr. Couch had been informed that a dolphin with two dorsal fins 

 had been observed in April 1857, on the coast of Cornwall. (See 

 Couch, ' "Whales of Cornwall,' p. 40.) 



5. LAGENORHYNCHUS. 



Head convex, gradually sloping into the beak in front. Beak 

 short, tapering in front. Lower jaw longest. Body elongate, taper- 

 ing behind, largest at the pectoral fins. Pectoral fins far back, 

 elongate and slightly falcate. Dorsal fin high, falcate, behind the 

 middle of the back. The back with a low, roimded, fin-like ridge 

 near the tail. Tail-lobes narrow, elongate. Skull depressed, the 

 hinder ends of the maxillary bones expanded, horizontal, and thick- 

 ened on the edge ; crown shelving. The beak is short, broad, flat 

 above and narrowed in front, and scarcely longer than the length of 

 the brain-ca\ity. The triangle in front of the blowers is flat, elon- 

 gate, and reaches beyond the middle of the nose of the skull, and the 

 intermaxillaries are separated by a deep groove filled with cartilage. 



Lagenorhyuchus, Gray, Zool. Erebus i^- Terror, 34, 1846 ; Cat. Cetac, 



B. M. 1850, 97 ; P. Z. S. 1863 ; 1864, 238. 

 Grampus (pars), Gray, Spic. Zool. 2, 1828. 

 Delphinus, sp., Briyhtwell, Ann. 1^- May. N. H. 1846, 



