CETACEA OF THE NEW ZEALAND SEAS. 581 



the vent and the flukes, dividing into three equally long pointed 

 (PI. II. figs. 1 & 2) bands, one central and one extending obliquely 

 along each flank. An elongated dusky patch surrounds the vent. 

 Total length of specimen 1-90 ni. An interesting point to observe 

 is that, according to Mr. Shepherd, the forehead is grey and not 

 white. This intermediate colour probably accounts for the vary- 

 ing descriptions given to this animal, resulting in it having been 

 listed under two names. 



Cook Strait. — («) Outside Wellington Hai-bour. Described by 

 Hector (1870). Yertebrse : C. 7, D. 14, L. & Oa. 48 = 69. (6) Ofl' 

 Cape Campbell. Two shot from a lai-ge school. Exterior de- 

 scribed by Hector (1872, 1873). (c) Wellington Harbour. Skull 

 in Dominion Museum. Teeth -|i. Length of skull 31-2 cm., of 

 rostrum 16 cm. ; width of skull at squamosals 16 cm., of rostrum 

 at base 8 cm. (cZ) Half model in Otago Museum, There is 

 also a skeleton, perhaps of this specimen, but locality not 

 given, 



Canterhury. — («) Skeleton from Banks Peninsula in Canter- 

 bury Museum, Vertebra? : C. 7, D. 13, L. 15, Ca. 29 = 64. Two 

 cervicals fused. Ribs 13, of which 4 are two-headed, last rib 

 less than half the length of the 12th. Sternum of one piece, 

 {h) Skull in U,S. JSTational Museum, Washington. 



LaGENOKH YNCH us. 



LagenorMjnchus Gray, 1846, Zool, 'Erebus' & ' Terror,' Mamm. 

 p. 30 ; type, Delphimis acutus Gray. 



LAGENOB.HY]SrCHUS OBSCURUS. 



Delphinus obscurus Gray, 1828, Spic. Zool. p. 2 (Cape of Good 

 Hope). Clymenia ohscura Gray, Hector, 1873, Trans. IST.Z. Inst, 

 vol. v. p. 160, pi. 1 ; id. 1877, 1. c. vol. ix. pi. 11 ; id. 1885, 1. c. 

 -vol. xvii. p. 211 ; Hutton, 1877, 1. c. vol. ix. p. 349. 



The Dusky Dolphin is common round the coast. It is apparently 

 widely distributed, being recorded from the Cape seas and in the 

 Southern Ocean as far south as 58° S. lat. (Lillie.) 



Wanganui Coast. — (a) Skull in Dominion Museum, Wellington. 

 Described by Hector (1873). Teeth -^. Length of skull, 

 35-5 cm. ; breadth at squamosals, 16'7 cm. ; rostrum length, 

 19-3 cm. ; breadth at base, 8-5 cm. (&) Two specimens in 

 AVanganui Museum. 



Cook Strait. — Skeleton in Dominion Museum. Teeth |^. 

 Vertebrae : C. 7, D. 13, L. 19, Ca. 32 = 71. Two cervicals fused. 

 Ribs 13, of which 6 are two-headed. Phalanges : 2, 9, 6, 2, 1. 

 Sternum of 3 segments. 



Banks Peninsida. — {a) Lyttelton Harbour. Skull in Canter- 

 bury Museum, (h) Akaroa. Cast in Canterbury Museum. 



There are two other skeletons of unknown locality in the 

 Dominion Museum. 



40* 



