578 MR. W. E. B. OLIVER : REVIEW OF THE 



Chatham Island. — In March 1906 a school of several hundreds 

 was stranded on Long Beach, Petre Bay. These were referred to 

 by Waite (Subant. Is. N.Z. p. 551, under Glohioce'phaliis melas), 

 who visited the locality in February 1907. In December 1909 

 the remains of many of them were still to be seen, and I was able 

 to identify the species as Pseudorca crassidens. Teeth in upper 

 jaw 8 on each side. 



Lyall Bay. — Cranium in Dominion Museum, Wellington. 

 Described by Hector. This was at one time referred by Hector 

 to BeUga (Ann. Mag. Nat. Hist. ser. 4, vol. ix. p. 438, 1872). 



Globicephala. 



Glohicephala Lesson, 1828, Hist. Nat. Mamm. et Ois. vol. i. 

 p. 441 ; type, Delphinus deductor Scoresby { = D. melas Traill). 



Globicephala mel^na. 



Delphinus melas Traill, 1809, Nicholson's Journ. vol. xxii. p. 21 

 (North Atlantic). Glohiocephalus macrorhynchus Gray, Hector, 

 1870, Trans. N;Z. Inst. vol. ii. p. 28; id. 1873, I.e. vol. v. p. 164;. 

 id. 1875, 1. c. voh vii. p. 261, pis. 16, 16 A; id. 1877, 1. c. vol. ix. 

 p. 481, pis. 13, 13 a; id. 1870, Ann. Mag. Nat. Hist. ser. 4, vol. v. 

 p. 222. Glohicephalus melas Traill, Hector, 1885, Trans. N.Z. 

 Inst. vol. xvii. p. 209 ; Waite, 1909, Subant. Is. N.Z. p. 551. 



The Blackfish is found in all tropical and temperate seas. Like 

 its relative the Tasmanian Blackfish, it goes about in schools. It 

 is occasionally reported stranded in considerable numbers, but as 

 the term " blackfish " is popularly applied to several species, the 

 specific identity is not always certain. Skeletons and skulls are 

 common in New Zealand museums. 



Chatham Islands. — Skull in Dominion Museum, Wellington,., 

 (according; to Hector, Ann. Mag. Nat. Hist. ser. 4, vol. xi. p. 105, 

 1873). 



Cook Strait. — {a) Two skulls and other bones in the Dominion 

 Museum. Described by Hector (1870, p. 28 ; 1873). One of the 

 skulls is very massive, measuring 67*5 cm. in length and 47*5 cm. 

 in breadth. Rostrum : length, 34 cm. ; breadth at base, 26-5 cm. 

 Pterygoids approximating to within 3 or 4 mm. Teeth ^, 

 Intermaxillaries broad, expanding a little in front*, approaching 

 to within 2 cm. of the edge of the maxillaries, upper surface 

 rugose anteriorly. Six cervical vertebrae fused. (6) Lyall Bay. 

 School ran ashore, January 1876. Ten skeletons were secured. 

 One now mounted in Dominion Museum. Exterior of animal 

 and skeleton described by Hector (1877). Teeth ^. Yertebrse : 

 C. 7, D. 11, L. 13, Ca. 29 = 60. Six cervicals fused. Ribs 11, of 

 which 7 are two-headed. Phalanges: 4, 13, 10, 3, 1. Two skeletons 

 in the British Museum are perhaps from this school, (c) Skeleton 

 in Otago Museum. Teeth _?^. Vertebra: C. 7, D. 11, L. 12, 

 Ca. 26=56. Four cervicals fused. Ribs 11, of which 6 are 



