92 ORCAD^. 



2. Orca gladiator, var. europseus, Oervais, OsUogr. CH. i. 47. f. 4 

 Orca gladiator, Oervais, I. c. t. 48. f. 1. 



Inhab. the Atlantic. 

 Skull about 40 inobes long. 



3. Orca gladiator, var. europseus, Van Beneden ^ Oervais, OsUogr. CH. 



t. 47. f. 5. 

 Delphinus orca, Oervais, Zool. et PaUont. Frangaise, t. 37. f. 3, 4. 



Inhab. Mediterranean, Cette. 



Skull about 22 inches long. It is about the same size as the Orca 

 from Algoa Bay ; but the brain-cavity is rather broader and the 

 beak is not so acute in front. 



Gervais, in the ' Zoology and Paleontology of France,' figures the 

 skull of a young Delphinus orea, taken on the coast of Cette, which 

 is now in the Museum of Paris. It appears to belong to this spe- 

 cies ; or it may be that the Orca of the Mediterranean does not grow 

 to the usual size ; or, again, it may be of a different species ; for the 

 skull is only fifty-eight centimetres long and thirty broad. 



5. Orca magellanica. 



Orca magellanica, Surmeister, Ann. 8f Mag. Nat. Hist. ser. 3. xviii. 

 p. 101, t. 9. f. 5 ; An. Mus. Publ, de Buenos Ayres, i. p. 373, tab. 22 ; 

 Oray, Synops. Whales 8f Dolph. p. 8 ; P. Z. S. 1870, p. 76. 



Inhab. Patagonia. Mus. Buenos Ayres. 



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



6. Orca tasmanica. 

 Orca gladiator, var. australis, Oervais, Ostiogr, CU. t. 47. fig. 1. 

 Inhab. Tasmania. Skull about 32 inches long. 



7. Orca rectipiuna. 

 Orca rectipinna, C(^e, Proc. Acad. Nat. Set. Philad. 1869, p. 12. 

 No white spot behind eye. 

 Inhab. CalHornia. 



8. Orca atra. 



Orca ater. Cope, I. c. 1869, p. 12. 



Black above and below, with white spot behind eye. 

 Inhab. Oregon, Aleutian Islands. 



The following are the measurements of the different skulls of the 



