Mr. T. Brightwell on the Bottle-nosed Dolphin. 21 
IV.—Observations on a specimen of the Bottle-nosed Dolphin, Del- 
phinus Tursio, Fabr., taken at Great Yarmouth, October 1845. 
By Tuomas Bricurwe.t, F.L.S. 
[ With a Plate.] 
A ceracrovus animal, which appears to me to be the Delphinus 
Tursio of Fabricius, was captured off Yarmouth this season by 
the herring fishermen and brought to Norwich. I saw it soon 
after its arrival, when it was in a fresh state, and have procured 
a good coloured figure of it, one-tenth the natural size, a reduced 
copy of which I send herewith (Plate II.). As the animal appears 
to be very rare on our coasts, and but imperfectly known to na- 
turalists, I doubt not a good figure and description of it will be 
acceptable to your zoological readers. 
_ This cetacean was eight feet two inches long, and four feet 
ten inches in circumference at the largest part. The colour of 
the upper part and sides a very rich deep purple-black. . The 
external cuticle was of a soft and silky texture, and so thin and 
delicate that it was easily rubbed off. The nose, and a well-de- 
fined line along the upper jaw, and the whole of the lower jaw 
and belly, were of a cream-colour, varied in some parts by a 
chalky-coloured white, contrasting beautifully with the rich black 
of the body. ‘The fins and tail were of the same colour as the 
back. The length of the mouth was nine inches and a half, 
with twenty-four teeth in the upper jaw and twenty-three in 
the lower jaw; the teeth small, conical, and rather sharp. The 
length from the tip of the nose to the eye thirteen inches. From 
the tip of the nose to the pectoral or lower fin, twenty inches: 
this fin was fifteen inches long. From the tip of the nose to 
the dorsal fin forty-one inches, and this fin was eleven inches and 
a half wide next the back, and ten inches high. The width of 
the tail twenty-two inches. The animal was a female, and weighed 
about thirty stone. Both the jaws were clearly but moderately 
elongated, the lower extending a little farther than the upper; 
aud there was a well-defined depression between the elongation 
of the upper jaw and the forehead, the point of this depression 
being marked by a slight ridge. The blow-hole was of a horse- 
shoe form, with the convex part towards the head of the animal. 
The Delphinus Tursio is not noticed in Sir William Jardine’s 
very useful little work on the Cetacea, but it is figured and de- 
scribed in Mr. Bell’s ‘ British Quadrupeds,’ p. 469. On a re- 
ference to that work, it will, we think, appear that we have 
rightly concluded our animal to be of this species. The points 
of generic and specific distinction are the beaked prolongation 
of the head and the form of the teeth. The figure sent will 
