318 GLOBIOCEPHALID^. 



intermaxillary nearly as wide as the jaw ; lower jaw obliquely trun- 

 cated in front ; palate fiat in front. 



Delphinus Grampus, Cat. Mus. Coll. Surg. n. 1138 j Htmterian Coll. 



n. 686. 

 Delphinus melas, Owen, British Fossil Mammalia ; Cat. Osteol. Mm. 



Coll. Surg. n. 2518. 

 Glohiocephalus affinis, Gray, Zool. Ereh. ^- Terr. 32 ; Cat. Cetac. B. M. 



1850, 89 ; P. Z. S 1864, 242. 



Inhab. North Sea. Mus. Coll. Surj?. . ,. 



° in. lin. 



Skull : Length, entire 24 



Length of nose 12 3 



Length of teeth-line 7 



Length of lower jaw 19 



Width of nose at notch 9 



Width of middle of nose 6 6 



Width at orbits 15 6 



This is probably a young specimen of Glohiocephalus Svineval. 

 The skull differs in being rather slenderer in front, and in the inter- 

 maxillary not being rugose in front. In the Catalogue of the Mus. 

 Coll. Surg. 165. n. 1138, it is called " the skull of a small Grampus," 

 Hunterian, and n. 1136, " the skull of a large Grampus," Hunterian. 

 It appears to be the skull which Prof. Owen gives the measm-ements 

 of, under the name of D. melas, in his account of Phoccena crassidens, 

 in the work on British Fossil Mammalia. 



The skull of the Black Grampus (Delphinus melas), which formed 

 part of the Hunterian Collection in the Museum of the College of 

 Surgeons (see Cat. p. 456, n. 2518), is thus described — 



" Number of alveoli |^' |^ =46. The teeth are moderately small, 

 conical, subincurved, decreasing to the two extremes of the series. 

 The fourth to the tenth inclusive are subequal. The symphysis of the 

 lower jaw is sub triangular, and curves from below upwards at its 

 extremity." 



3. Glohiocephalus intermedius. Blaclcfish. 

 Teeth |-^, several being quite loose. Skin uniform dull slate- 

 colour ; belly with an ill-defined, narrow, clouded white streak ex- 

 tending from beneath the jaw to about the anus, being much broader 

 and whiter in some parts than in others, and most so beneath 

 the jaw. 



Delphinus intermedins, Harlan, Journ. Acad. Sci. Philad. vi. 51. t. 1. 

 Delphinus Harlani, Fischer, Si/n. Mamm. 656 ; Schinz. 

 Glohiocephalus melas, Dckoy, Zool. Ncio York, t. 

 Phocpena glohiceps, Sampson, Silliman Amer. Journ. Sci. iii. 301. fig. 

 Delphinus glohiceps, JacJcson, Boston Journ. N. H. v. 160. t. 15. f. 1. 

 Glohiocephalus Svineval, var. ?, Gray, Zool. Ereh. 8c Terr. 32. 

 Glohiocephalus intermedius, Gray, Cat. Cetac. B. M. 1850, 88. 

 Blackfish, American Sailors, Nemcied, Voy. Amer. Xord, iii. 232. 

 Anat. Jaekson, Boston Journ. N. II. v. 160. t. 15. f. 2 (stomach). 



Inhab. Coast of North Amci'ica. 



