Hzcron.—On the Dolphins of the New Zealand Seas, 209 
2. Pseudorca crassidens, Owen; Gray, 290. 
(P. meridionalis, Flower, Proc. Zool. Soc., 1864; Hector, Trans. N.Z. Inst., v., 163.) 
Professor Flower states that further examination of a complete series of 
adult skeletons has led him to abandon the specific distinction of the 
southern from the northern form of this animal. No further specimen of this 
rare animal has been obtained since my former notes were published. 
8. Grampus richardsoni, Gray, 299. 
‘Hector, Trans. N.Z. Inst., v., 163. 
Nothing more has been ascertained as to the occurrence of this grampus 
in the New Zealand seas. It is probably identical with Grampus griseus of 
the northern seas, which Professor Flower states is remarkable for the 
variability of its colour. 
4. Delphinapterus leucas, Pallas. 
(Beluga kingii, Gray, 309; Hector, Trans. N.Z. Inst., v., 163.) 
The inclusion of this animal in the New Zealand Fauna is still only 
dependent on the single specimen of an imperfect skull. A skull of the 
northern species, which I obtained for comparison, agrees so well that it is 
better to sink the specifie distinetion until definite information is obtained. 
5. Globicephalus melas, Traill. 
G. macrorhynchus, Gray ; Hector, Trans. N.Z. Inst., v., 164. 
A number of skeletons of this very common animal known as the 
blackfish have been sent by me in exchange to other museums, and 
Professor Flower has satisfied himself that it cannot be separated from the 
Caaing whale of the Northern Seas. Professor Flower considers that the 
skull in the College of Surgeons Museum which forms the type G. macro- 
rhynchus belongs to a different animal; but the description quoted by Gray 
of the South Sea blackfish and its habits under that specific name so 
evidently apply to our common blackfish that I was misled in my former 
determination. 
7. Cephalorhynchus hectori, Van Beneden. 
Lagenorhynchus clanculus, Gray. 
Electra clancula, Hector, Trans. N.Z. Inst., v., 160. 
The common dolphin of the coast which I at first identified as this 
species has given rise to a most embarrassing confusion of nomenclature 
from its evidently having been confounded with another dolphin almost 
equally common and of the same size, Clymenia obscura. Following the 
nomenclature of Gervais, and guided by the character of the pterygoid bones, - 
Professor Flower refers it to the genus Cephalorhynchus, which with Gray 
was a sub-genus of Tursio, and considers it barely distinguishable from 
Gray's Tursio heavisidii of the Cape of Good Hope, w. Yay is, however, 
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