Fig. 5. Skull of Tursio truncatus (♂), adult.

Fig. 6. Under surface of the upper jaw, showing the worn surface.

Vertebræ 62:—C. 7. D. 13. L. 17. C. 25.

Second finger very long; third shorter. Breast-bone formed of three pieces, linear, dilated in front.

1. Tursio truncatus. (Figs. 5 & 6.)

B.M.

Tursio truncatus, Gray, l. c. pp. 258, 400. no. 6; P. Z. S. 1866, p. 215, 1868, p. 561, figs. 1, 2; Synops. Whales & Dolph. p. 6, (D. tursio) t. 10. f. 1.