89 



OECA AECTICUS, Yon Beneden and Gervais, Osteogr. Get. 



Skull, 24 inches in length. 

 Inhab : North Sea, Faroe Islands. 



OECA ErEOPJetrs, Van Benedeu and Grervais, Osteogr. Get. 

 de V Atlantic : teeth i{f ; length of skull, 36 inches. 

 de Mediterranee : length of skull, 24 inches. 



SOIJTHEEN YAEIETIES. 

 OECA CAPENSIS, Gray, S. & W., p. 283, Suppl., p. 90. 



Synonyms DelpTiinus globiceps, Owen. 



jDelpJiinus orca, Owen, Brit. Foss. Mamm. 

 Grampus, Bennett, "Whaling Voyage. 



Teeth i, G-ray ; Sif, Yan Beneden. 



Length of skull, 36^ to 37 inches, Gray ; 42 inches, Yan Beneden. 



Colour similar to that of the Orca gladiator. 



Dr. Gray observes, in page 285, " the examination of the skeleton, and 

 especially of the skull, shows that they (Orca gladiator of the British 

 coast, and Orca capensis) are quite distinct"; whereas Professor Owen, 

 in his elaborate analysis of the same animals, concludes his strictures 

 with the equally strong opinion : " The slight differences noticeable in 

 the skull chiefly depend on the muscular attachment, and are of a kind 

 to characterize varieties not to establish specific distinctions." As I 

 entertain no belief in the theory of limited locality, particularly when 

 applied to such powerful beings, I adopt, without hesitation, the view 

 suggested by Prof. Owen, and consider the O. capensis as a variety only. 



OECA AEEICANA, Gray, Suppl. S. & W., p. 91. 



Skull, 24 inches in length. 

 Inhab : Algoa Bay. 



OECA MAGELLANICA, Burmeister, Ann. & Mag., Nat. Hist. Gray, 



Suppl. S. & W., p. 92. 



" This species, according to the figure, is very like Orca latirostris." 

 Inhab : Patagonia. 



OECA TASMANICA, Gray, Suppl. S. & "W., p. 92. 



Skull, about 32 inches in length. 

 Inhab : Tasmania. 



OPHTSIA (OECA) PACIFICA, Gray, Suppl. S. & W., p. 93. 

 Synonyms Delpliinus orca, Eydoux. 



Orca capensis, Gray, S. & W., p. 283. 

 Teeth ? 



" Intermaxillaries very narrow, slightly dilated in front ; brain-cavity 

 broad ; occiput deeply concave ; lower jaw very broad on the sides, very 

 thick and solid in front." 



