80 CETACEA. 



1. OXYPTERUS RHINOCEROS. 



Black; white-eared. 

 Delphinus Rhinoceros, Quoy fy Gaim. Zool. Uranie, 86. t. 11. f. 1 ; 



Desm. Diet. Class. H. N. v. 359; Fischer, Syn. 509. 

 Oxypterus Rhinoceros, Lesson, Man. 411. 

 Inhab. Equinoctial Ocean, lat. 5 28'. 



*** Teeth in both jaws permanent, compressed. 

 6. NEOMERIS. 



Dorsal fin none ; nose of skull short, rounded at the end, flat, 

 shelving above ; teeth numerous, compressed, nicked, acute, ex- 

 tending nearly the whole length of the jaw. 



Neomeris, Gray, Zool. Erebus fy Terror, 30, 1846. 

 Delphinus, sp. Cuvier, R. A. i. 291. 

 Delphinapterus, sp. Temm. Faun. Jap. 7> 



1. NEOMERIS PHOC^ENOIDES. The NEOMERIS. 

 Black ; teeth |f or f f . Length 4 feet. 



D. Phocaenoides, Dussumier, MSS. ; Cuv. Reg. Anim. i. 291. 

 Delphinus melas, Temm. Faun. Japon. t. 25, t. 26. 

 Delphinapterus melas, Temm. Faun. Jap. 7. 

 ANAT. Fauna Japon. t. 25, teeth, t. 26, bones. 

 Inhab. Indian Ocean, Japan. " Cape of Good Hope," or " Ma- 

 labar," Dussumier. 



The figure in the Fauna Japonica is from a drawing made by 

 a Japanese artist under Burger's inspection. 



The skull of Delphinus melas in the Leyden museum is more 

 swollen and broader than that of Phoccena communis ; the nose 

 is shorter, broader, more rounded at the end and nearly flat, not 

 shelving above ; teeth -ff , larger and stronger ; skull the entire 

 length (in Phoccena -J). Nameno-juo, Japan. 



The short description of the D. Phoccenoides of Cuvier, which 

 Dussumier is said to have discovered at the "Cape of Good 

 Hope," agrees with the figure in the Fauna Japonica. A skull 

 in Mus. Paris, marked " D. Phoccenoides, brought from Malabar 

 by Dussumier in 1837." It is broader and shorter than that of 

 Phoccena communis ; teeth spathulate, rounded, oblique, |f ; 

 palatine bones and intermaxillaries broad, as seen in the roof of 

 the beak. Length of this skull 7, of nose 2, width at notch 2 

 inches. 



The skulls are much alike, but they may be two species cha- 

 racterized by the number of the teeth. 



