The Zoologist— March, 1873. 3425 



i. Delphinus. — Beak elongate. Palate with a deep groove on 

 each side behind. Dorsal fin distinct. Teeth small, slender, five 

 or six in au inch. Fingers elongate, unequal; the second much 

 the longest, 8- or 9-jointed ; third elongate, about three-fourths 

 the length ; the rest short. Skull (Cat. Get. B. M., t. 1, f. 3, t. vi. 

 f.3). 



1. Delplmitis delphis (the Dolphin).— Black, sides gray, beneath 

 white. Beak of skull once and a half the length of the brain-case. 

 Teeth || or |-J. Inhabits Mediterranean and North Atlantic. 

 Cornwall, after the mackerel and pilchards; Couch. Greenland; 

 Fabricius. 



ii. Clymenia. — Beak of skull elongate-depressed ; palate flat, 

 behind, without any lateral groove. Nasal triangle moderate. 

 Dorsal fin distinct. Pectoral fin falcate; hand larger than the 

 fore-arm bones. Skull elongate, slender; brain-case spherical; 

 beak slender, elongate, longer than the brain-case; inter- 

 niaxillaries convex. Teeth small, slender, five or six in an 

 inch. The symphysis of the lower jaw short. The blowers are 

 moderate. 



1. Clymenia Eiiphrosi/ne (The Euphrosyne). — Beak of the skull 

 once and three-quarters the length of the brain-cavity. Teeth six 

 in an inch. — Gray, Zool. Erebus and Terror, tab. xxii. (skull). 

 North Sea. East coast of England ; skull in the Norwich Museum 

 (Briffhiwell) . 



iii. TuRsio. — Beak short, thick, rather longer than the brain- 

 case, conical, convex above, rounded. Palate flat behind, without 

 any lateral groove. Teeth large, || or ||. Skull high. Blower 

 large. Nasal triangle produced considerably before the notch. 



1. Tursio truvcatus (The Bottle-nose). Delphinus iursio, O. Fab. 

 D. truncatus, Montagu, Vern. Trans, iii. tab. v. f. 3. Skull, aged, 

 Suppl. Cat. Seals and Whales, p. 73, figs. 5 and 6. — Inhabits North 

 Sea and Mediterranean. Mouth of the Thames, 1828; the Orwell, 

 1849. River Dart, Devonshire; Montagu. Skull in Brit. Mus. 

 This species is found on the coast of France and the Mediterranean. 

 — Gervais, Osteogr. Cet., tab. xxxiv. figs. 3 and 9 (skull). 



Tribe II. Lagenorhvnchina. — Head attenuated, beaked. Teeth 

 conical. Beak of the skull as long as the length of the brain*case, 

 broad, flat above ; edges slightly reflexed and bent up in front of 



