CETACEA. lll 
“the lower jaw obliquely truncated, with a rather prominent gonyx. 
The elongated intermaxilla and the vomer are visible in the palate. 
In the old skulls the intermaxillaries are } width above, and the 
sides of the maxillaries are shelving. In skull n. 1126 (Mus. 
_ Coll. Surg.) the teeth are very oblique and truncated at the end. 
In all the skulls I have seen of this species the teeth are more 
or less worn down, but Mr. Bell says he has two skulls in which 
they are acute.—Brit. Quad. 472. M. F. Cuvier (Cetac. 223) 
complains of Montague’s figure of the skull of D. truncatus: he 
_ does not recognize im it the D. Tursio, but thinks it most re- 
_sembies D. Delphis! Hence the origin of his complaint. 
A stuffed specimen and skeleton, in the Edinburgh University 
_ Museum, from the Firth of Forth, have all the teeth truncated 
_ and flat. A skeleton in the Surgeons’ Hall of Edinburgh, from 
_ the same locality, has them all acute. The latter is named 
_ D. Delphis. The atlas (or first) and second cervical vertebre 
_ united by the body and lateral process; the third to the seventh 
cervical vertebre free. 
» A specimen with teeth 24, large, conical, acute, was taken in 
the river Orwell, May 10, 1849. 
5. DeELPHINUS ABUSALAM. The ABUSALAM. 
Black, below white, with small dark spots; teeth 23-38. 
_ Nose of skull about 3 of length, 25 its width at the notch. In- 
_ termaxillary bones very convex, forming a strong ridge on each 
side. Lower jaw tapering in front. 
~*~ Delphinus abusalam, Riipp. Mus. Senk. 1842, t. 12. f.1, 2,3; 
P Gray, Zool. Erebus 8 Terror, 38. 
_ Inhab. Red Sea. 
: Only known from Dr. Riippell’s description and figure. It 
has heen said to be the same as D. Tursio, but it appears to be 
different. 
___ Delphinus aduncus, a & Ehrenb. Sym. Phys.u. Beak de- 
_ pressed, elongate; teeth 2%, conical, strong. Inhab. Island of 
_ Belhosse,—is perhaps the same as the former. 
6. DELPHINUS EuTrRopi1A. The EutTropia. 
Nose of skull rather longer than the length of the bram-cavity, 
rather dilated on the sides before the notch, very convex and 
- rounded above. Triangle elongate, produced before the teeth- 
_ line, concave on the sides and strongly keeled in the centre 
behind ; hinder edge of blow-hole rather prominent. Intermaxil- 
- laries wide, convex above, leaving a rather broad open space in 
front. Lower jaw thick, blunt, and rather produced beyond the 
