134 — Dr. A. R. Duguid on a Species of Dolphin 
now describe it. The length of all the animals varied from 6 to 
9 feet. Of this one, the length was 7 feet 2 inches, circum- 
ference 4 feet; length of dorsal fin 17 inches, and 8 inches high. 
From snout to dorsal fin 2 feet 9 inches. From dorsal fin to 
middle of tail 3 feet 4 inches. ‘Tail 1 foot 8 inches broad, and 
cleft in the middle to the extent of 1 inch. Upper jaw 9 inches 
long, decidedly beaked for 3 inches ; lower jaw 94 inches, pro- 
jecting 3 an inch beyond the upper. Pectoral fin, or swimmer, 
124 inches long; base of it 15 inches from the extremity of the 
lower jaw. The eye oval, ;$;ths of an inch in its longer diameter, 
and 3 an inch in its shorter, situated in a horizontal line with 
the mouth ; the pupil dark brown. Teeth in both jaws the same 
in number, 29 on each side, conical. When the mouth is shut, 
the teeth of one jaw fit into the interstices between the teeth of the 
other, like the teeth of a trap. Two double teeth in the upper jaw 
on both sides at the back ; but this was not observed in other spe- 
cimens. The colours and markings were precisely the same in all 
the specimens, without the smallest perceptible variation. The 
back was black, and the belly pure white, without grooves. There 
was a streak, of a dark yellow or clay-colour, commencing under 
the anterior part of the dorsal fin, and running nearly to the tail, 
nearly in the middle of the side, and about 33 inches in breadth. 
Another streak of dazzling white commences some distance be- 
hind the eye, running towards the tail, partly underlapping the 
yellow streak, but not extending so near to the tail. Under 
these there is a dusky streak, running all the way from the nose 
to the tail, with a very irregular outline. The white streak was 
from 4 to 5 inches broad. The blow-hole is crescentic in shape, 
with the convex side backwards. (Pate III.) 
I am favoured by a friend with the following description of 
another specimen :—From tip of snout to the middle of the tail, 
along the back, 8 feet 3 inches; the same, in a straight line, 
7 feet 8 inches. Tip of lower jaw to anterior of pectoral fin 
1 foot 4 inches; from the same to the posterior of saine 1 foot 
9 inches; from the same to genital organs 4 feet 10 inches ; 
from the same to anus 5 feet 9 inches. Distance between pec- 
toral fins below, 64 inches ; the same, above, 2 feet 9} inches. 
Length of pectoral fins, in curve, 1 foot 43 inches; length from 
centre of base to tip 1 foot 1 inch. Expansion of tail 2 feet 
1 inch. Width of flaps of tail 9 inches. Length from snout to 
dorsal fin 3 feet 1 inch. Length of dorsal fin in curve 1 foot 
7 inches; length of the same from centre of base to tip 1 foot 
1 inch; breadth of the same at middle 7 inches, at base 1 foot 
34 inches. Length of upper jaw, in a straight line, 10 inches ; 
of lower jaw 11 inches. Girth, at dorsal fin, 4 feet 3} inches ;- 
at pectoral fin, 3 feet 10 inches; at anus, 3 feet ; at 1 foot from 
