214 DR. J. E. GRAY ON THE SKULLS OF DOLPHINS. [May 8, 



** Beak of skull once and a half the length of the hruin-case. . 



Teeth % to £ 



3. Delphinus delphis. 



3*. Delphinus moorei. 



3**. Delphinus major. 



3***. Delphinus walkeri. 



5. Delphinus janira, Zool. E. & T. t. 23. 



Clymene. 



Skull elongate, slender ; brain-case spherical ; beak slender, elon- 

 gate, longer than the brain-case ; intermaxillaries convex. Teeth 

 small, slender, five or six in an inch. The symphysis of the lower 

 jaw short. The blowers are moderate. See Clymene, Gray, P. Z. S. 

 1864, p. 237. 



* Beak of the skull twice as long as the brain-case. Teeth five in 



an inch. 



Clymene stenorhyncha. Delphinus stenorhynchus, Cat. of 

 Seals & Whales, p. 396. 



** Beak of the skull once and three-quarters the length of the brain- 

 cavity. Teeth six in an inch. Euphrosyne. 



1. Clymene microps. D. microps, Gray, Cat. p. 240; Zool. 

 E. & T. t. 25. 



16. Clymene alope. D. alope, Gray, Cat. p. 252. 



18. Clymene euphrosyne. D. euphrosyne, Gray, Cat. p. 251 ; 

 Zool. E. & T. t. 22. 



*** Beak of the skxdl once and one-half or once and one-third the 

 length of the brain-cavity. Teeth five or six in an inch. Cly- 

 mene. 



Clymene normalis. Beak of the skull once and one-half the 

 length of the brain-case, and as long as twice and one-half the width 

 at the notch. Teeth 40, nearly six in an inch. Delphinus clymene, 

 Gray, Cat. p. 249. 



Clymene doris. Beak of the skull once and one-half the length 

 of the brain-case, and as long as twice and a half the width at the 

 notch. Teeth five in an inch. Tursio doris, Gray, Cat. Seals & 

 Whales, p. 255 ; Zool. E. & T. t. 20. 



Clymene dorides. Beak of the skull once and one-third the 



