Inhab. the Atlantic.

Skull about 40 inches long.

3. Orca gladiator, var. europæus, Van Beneden & Gervais, Ostéogr. Cét. t. 47. f. 5.

Delphinus orca, Gervais, Zool. et Paléont. Française, 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 orca, taken on the coast of Cette, which is now in the Museum of Paris. It appears to belong to this species; 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, Burmeister, Ann. & Mag. Nat. Hist. ser. 3. xviii. p. 101, t. 9. f. 5; An. Mus. Publ. de Buenos Ayres, i. p. 373, tab. 22; Gray, Synops. Whales & Dolph. p. 8; P. Z. S. 1870, p. 76.

Inhab. Patagonia. Mus. Buenos Ayres.