298 BELPHINID^. 



external form to the Champus 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 Rissoauns. Bisso's Crrampus. 



Bluish white, with irregular, brown-edged, scratch-hke lines in aU 

 directions. Females uniform brown, with similar scratches. Lower 

 jaw conical, acute ; teeth on each side in front. 



Delphinus Rissoanus, Laur. ; F. Cuv. Mamm. lAthog. t. ; CUac. 196. 



t. 12. f. 1 ; Schlegd, Abhandl. 33 ; Fischer, Syn. Mamm. 512 ; Desm. 



Mamm. 519. 

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



f. 4; Risso, Ann. Mm. H. N. xix. 1. 1, 2; Europ. M6nd. 23. 

 Delphinus Rissoi (D. Rissoanus), Gervais, Zool. et Paleont, Franc. 149. 



t. 37. f. 1, 2 (skull, from Nice). 

 Delphinus Aries, Risso, Cuv. Ann. Mtts. xix. 12. t. 1. f. 4. 

 Grampus Rissii, Jardine, Nat. Lib. vi. 219. t. 18. 



Cetus (? ), WagUr, N. Syst. Amph. 83. 



Phoceena Rissoanus, Lesson, Man. 416. 



Grampus Rissoanus, Oray, Zool. Erebus §■ Terror, 31 ; Cat. Cetac. 



B. M. 1850, 84. 



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

 varied with black. — F. Cuv. I. e. t. 13. f. 1 (male). 

 Inhab. Nice {Bisso, Lawillard). 



M. Laurillard observes, the teeth are conical, early deciduous, espe- 

 cially of the upper jaw. He gives the following measurements : — 



ft. in. 



Length, entire 9 



Length of head 1 6^ 



Height of dorsal 9 



Lesson refers this species to the genus Qlohioeephalus ; but the 

 position of the dorsal and the form of the pectoral, as well as the 

 description of the teeth, make me believe it rather belongs to this 

 genus. M. Cuvier observes that his D. griseus is only described from 

 a bad drawing of this species ; but M. F. Cuvier, who had a- new 

 description, and M. Laurillard, consider them distinct. — Big. Anim, 

 i. 290 ; F. Cuv. Cetac. 184. 



In the Paris Museum there is a skull from Rochelle, sent by 

 M. d'Orbigny, and a second from Nice, brought by M. Laurillard, 

 whiclj greatly resemble one another. 



Gervais observes, " The maxUlaries are visible below. The frontal 

 region is rather flattened. Cervical vertebrae soldered together; 

 dorsal 12, lumbar 7, caudal 49=68. The chevron bones commence 

 at the forty-fifth of the series. Inhab. Nice. Length about 10 feet 

 (3 metres)." 



G. Cuvier described Ch-ampv.s Bissoanus, which is very nearly 

 allied to his D. griseus ; but the former Uves in the Mediterranean, 

 and the latter on the coast of Brittany. The cranium of this species 



