104 CETACEA: 
Delphinapterus leucorhamphus, Peron, Voy.i.217.t.1. = * 
Delphinapterus Peroni, Lesson, Voy. Coq. t. 9. f. i bad, cop. F. 
Cuvier, Cetac. 164. t. ; Jardine, N. Lib.t. ; Gray, Zo - 
Ey 1. t 40.4, A. i. 
Dauphin de Peron, Cuv. Oss. Foss. v. t. 21. f. 5, 6, skull. 
D. bicolor, Stephenson, MSS. Icon. ined. ; Gray, Zool. E. & T. 
36. t. 15. f. 1-3, from Stephenson’s drawing, t t. 15. f. 4, from 
Lesson. 
Delphinus Peroni or Right Whale Porpoise of the Whalers, Ben-— 
nett, Narrat. Whaling Voyage, u. 235, fig. 
Hab. Higher Southern latitudes. Brazil Bank. Lat. 40° S. to 
- 54°S., long. 50° W., Bennett. New Guinea, Quoy. a 
Skull, from Peron, in Mus. Paris. Length 183, of beak 10, of — 
teeth-line 81, of lower jaw 144. Width at orbit 9, "at notch 42, at 
middle of beak 22 inches ; teeth 44, small, slender, six in an inch; 
beak broad, depressed, rather tapering in front, the sides spongy, 
the centre hollow, filled with cartilage, broader in front, flattened — 
behind; triangle extending nearly to the middle of the length of ~ 
the beak ; orbit rather shelving above and slightly thickened on 
the edge ; palate flat in front, rather convex behind, without any — 
groove on the sides; lower jaw gradually tapering, angularly 
shelving and flat on the sides in front; symphysis short, not two 
inches. 
A second skull, im Mus. Paris, brought by M. Housard in 1822, 
is rather more depressed im the middle in front, and with the 
triangle reaching near to the middle of the beak: teeth $4; length, 
entire, 17°6, of beak 9°6, of lower jaw 14°6; width at notch 4°3, — 
at middle of the beak 2°6. Orbits rather shelving above and 
slightly thickened on the edge. : 
Cuvier justly observes, that the beak of Lesson’s figures (Voy. 4 
Coq. t.9) is too pomted. Lesson also represents the black as only — 
occupying the upper part of the back, as represented im fig. 4 of 
the plate t.15 of the Zoology of the Erebus and Terror, copied — 
from his plate. M. D’Orbigny, and Bennett, represent the 
black as down to the base of the fins, and the hinder edge of the — 
fin as black. Inthe Zoology of the Erebus and Terror, t. 15,9 
is given a new figure of the species, copied from a drawing, +5 the 
natural length, communicated by W. Wilson Saunders, Esq., of © 
Lloyd’s, which was made by Dr. Stephenson, during the voy: oe 
of the ship Glenarn, Capt. Guy, in lat. 46° 48! S., long. 142° 
Jan. 12, 1844. :: 
They live in large shoals ; the flesh is esteemed a delicacy.— — 
Bennett, 11. 237. } 
