3. DELPUINUS, 251 



14. Delphinus Tethyos. 



Delphinus Tethyos, Gerimis, Btdl. Soc. HeratiU, 1853, 140. t. 1. f. 14 

 (skiill) ; Bull. Soc. Phlloin. Extr. Proc. Verb. 1853, 23; L' Institute, 

 1853, xxi. no. 1001. 85 ; Bull. Sci. Nat. 1853, xx. 289. 



Orca Tethyos, Gerard, Cat. Osteal. Mamm. B. M. 155, 



Inhab. Mediterranean; Department of Herault (Gervais). 



Two specimens of DeJjjhinus Tethyos have been taken, one at the 

 month of the Orb Heranlt in 1852, and the other in the vicinity of 

 Port Vendres, Pyrenees Orientales, of which the skull is in the col- 

 lection of Dr. Pinchenat (Gervais, Comptes Rendus, 28th Nov. 1864, 

 876 ; Ann, & Mag. N. H. 1865, 76). The groove on the side of the 

 palate does not exist in D. Tethyos. 



15. Delphinus Euphrosyne. The Euphrosyne. 



Skull round, flattened behind ; nose broad and tapering in front, 

 depressed, flat at the base, shelving on the sides and rounded in the 

 middle above, about half as long again as the head, or three-fifths 

 the entire length, and twice and a half the length of the width at 

 the notch. Teeth i|, slender, elongate, shghtly curved, acute. The 

 intermaxillaries are convex and rounded above, with a wide groove 

 between them for half their length in front. 



Delphinus Euphrosyne, Gray, Cat. Ost. Sj)ec. B. M. 147 ; Zool. Ereb. 



8f Terror, 40. t. 22 (skull) ; Cat. Cetac. B. M. 1850, 117; Nilssm, 



Skand. Fauna, i. 595. 

 Delphinus Styx (pars). Gray, Cat. Osteol. Spec. B. M. 38. 

 Delpliinus HolboUii, Eschricht, Naturf. mot i Kopenli. 1847, fide Nilsson. 

 Delphinus Delphis, Cat. Mus. Coll. Sury. 161. n. 1117. 



Inhab. North Sea. Coast of England. South Atlantic. Near 

 mouth of Rio de la Plata, Mus. Euenos Ayres {Burmeister). 



Skull, Mus. Norwich : — jjj_ Ijjj^ 



Length, entire 18 6 



Length of head 7 4 



Length of nose 11 3 



Length of lower jaw 16 



Length of temple 9 6 



Width at notch 4 6 



Width at midcUe of beak 2 4 



Width at temples 8 3 



a. Skull, imperfect behind. Specimen figured in ' Zool. Erebus and 

 Terror,' t. ined. 



This skull only difl^ers from the one at Norwich in being rather 

 smaller in all its dimensions. . ,. 



Length, entire 17 6 



Length of nose 10 3 



Length of lower jaw 14 3 



Width at notch 4 3 



Width at orbit 7 6 



Teeth AA-^ 



