84 CETACEA. 



This species loses its upper teeth at an early period and pre- 

 serves only a few of its lower ones. The dorsal fin is lower and 

 further back than in D. Orca, Cuv. R.A.i. 290. 



M. F. Cuvier (Cetac. 193) has referred the Marsouin of Du- 

 hamel (Peck. iv. t. 9. f. 5) to D. globiceps, but M. Duhamel 

 particularly observes that the pectoral and dorsal were nearly 

 equidistant from the head, and that the under side is paler 

 than the back, golden green, not white, which does not agree 

 with D. melas. In both these points it suits better with this 

 species. 



This species was first described from a skeleton and drawing 

 sent from Brest to Paris. The bad colouring of the drawing in- 

 duced M. Cuvier to call it D. griseus, but it is black and not grey. 

 M. F. Cuvier regards it as distinct from D. aries of Risso, which 

 his brother thought was the same. F. Cuv. Cetac. 184. 



In D'Orbigny's specimens the dorsal was injured, and in two 

 of them nearly destroyed. The young, 7 feet long, had eight 

 conical, acute teeth. The older, two males and one female, 

 10 feet long, had only six or seven blunt, carious teeth. The 

 upper jaw longest (4 inches), without any indication of teeth, 

 even in the young one, but with a slight groove for the reception 

 of the edge of the lower jaw. 



M. D'Orbigny says that this species has " most affinity in the 

 external form to the Grampus of Hunter, t. 17, which Lacepede 

 called D. ventricosus, but differs essentially in the total absence 

 of teeth in the upper, and by the number in the lower jaw." 

 Hunter does not figure any teeth in the upper and only a few in 

 the lower jaw. 



2. GRAMPUS RISSOANUS. Risso's GRAMPUS. 



Bluish white, with irregular, brown-edged, scratch -like lines in 

 all directions. Females uniform brown, with similar scratches. 



Delphinus Rissoanus, Laur. F. Cuv. Mam. Lithog. t. . Cetac. 



196. 1. 12. f. 1 ; Sclilegel, Abh. 33; Fischer, Syn. Mam. 512 ; 



Desm. Mam. 519. 

 D. de Risso, Cuv. Ann. Mus. xix. 12. f. 4, cop. Schreb. t. 345. 



f. 4 ; Risso, Ann. Mus. H. N. xix. t. 1, 2; Europ. Merid. 23. 

 Delphinus aries, Risso, Cuv. Ann. Mm. xix. 12. t. 1. f. 4. 

 G. Rissii, Jard. Nat. Lib. vi. 219. t. 18. 



Cetus (? ), Wagler, N. Syst. Amph. 33. 



Phocsena Rissoanus, Lesson, Man. 416. 



Grampus Rissoanus, Gray, Zool. Erebus fy Terror, 31. 



Var. 1. Dorsal, pectoral, tail, and hinder part of the body 

 below, varied with black. F. Cuv. 1. c. f. 13. f. 1, male. 



Inhab. Nice. Risso, Laurillard. 



