66 
in the female; a large penis in the male. Skin smooth, shining, and 
black throughout, save two whitish brown patches at the throat and 
near the vent and genitals; in a few males and females this light 
colour extends in a narrow strip from these points along the under 
part of the body, but never behind the eye, or elsewhere. 
The blubber was 12ths inch thick on the sides, much thicker on 
the back, and composing the whole thickness of the snout. The 
cuticle, which on its outer surface was like oil skin, when stripped 
off, exhibited on its under side a jet-black velvet-like rete mucosum, 
furnished with a very great abundance of black pigment. Around 
the eyeball was a firm bony plate in the sclerotic coat ; and a white 
funnel-shaped ligament, extremely thick, tough and strong, was at- 
tached by its base to the eyeball, and surrounded the optic nerve, 
As there is no opportunity here of consulting the published de- 
scriptions and figures of the Cetacea, I am uncertain at present of 
the species of this one. It does not correspond with any description 
in the Rev. Leonard Jenyns’s ‘ Manual of the Vertebrata,’ a copy of 
which is my travelling companion. The present animal approaches 
nearest to his Grampus (Delphinus orca) and Ca’ing Whale (D. me- 
las of Traill and D. deductor of Scoresby). But it is smaller than 
either of them, though I suspect it will prove to be Traill’s D. melas, 
and has not the white spot behind the eye, nor the broad pectoral 
fins of the Grampus, nor the very convex top to the head, the small 
average number of teeth (which he makes only twenty-four in all), 
nor the colour of the skin of his Ca’ing Whale. The animals which 
I examined had a convex rounded snout, its thickness made up of 
gristly blubber, which it is possible may have been erroneously de- 
scribed as the “top of the head.” The Rey. Charles Archibald, 
whom I had the pleasure of meeting among the carcases, directed my 
attention to the difference between the pectoral fins of this species 
and those of the Grampus. 
The relative position of the back fin, so much more forward in the 
adult than in the foetus, is remarkable; and, indeed, the comparative 
measurements exhibit some interesting facts as to development. 
Dundrum, co. Down, May 20, 1853. 
Postscript.—The animal is undoubtedly the same as that described 
under the name of the Uyea Sound or Ca’ing Whale by Mr. Patrick 
Neill in 1806, and afterwards figured by Dr. Traill from a drawing by 
Mr. James Watson; by Cuvier; by Captain Scoresby, Mr. Bell, and 
Mr. Couch. 
But though these figures are sufficient to identify the species, they 
all represent the pectoral fin as narrower at the base than it really 
is; and most of them show a twist of the tail, which was observed in 
none of the specimens at Dundrum Bay. Cuvier’s plate is the only 
one that gives an idea of the pointed end of the dorsal fin; all the 
others represent this posterior termination of the fin too blunt, 
rounded, or short, though Mr. Couch correctly describes it as fal- 
cate. 
No doubt, the fcetus, 4 feet 8 inches long, from Dundrum Bay, 
