144 DR. J. E. GRAY ON A NEW DOLPHIN. [May 13, 



from it were taken two foetuses, each 10 inches in length. The adult 

 was of a very light lead-colour above and on the sides, gradually 

 passing into the dirty leaden white of the lower parts, which were 

 covered (as also the flippers) with longitudinally elongated blotches 

 of dark lead-colour. 



" The smaller of the tioo skulls represents another Porpoise of the 

 same species, harpooned off Cape Flattery, on the north-east coast 

 of Australia, Oct. 9, 1860. It was considerably smaller than the 

 .first one, being only 6| feet in length. It was ?i. female. The colour 

 was exactly lead-colour, fading into whitish on the lower parts be- 

 tween the anus and the snout. The sides were marked with small 

 oblong spots of the same colour as the back. Measurements when 

 recent : — 



" Total length, snout to centre of tail, 6 feet 9 inches. 



" Snout to base of dorsal, 3 feet ; length of anterior border of dorsal 

 13 inches ; height of dorsal 8 inches ; width of dorsal 12 inches ; 

 from posterior border of dorsal to tip of tail, 2 feet 8 inches. 



"Swimming-paws (midway between snout and dorsal) 13 inches 

 long, and 5 1 inches broad ; from their base to end of snout, 13 inches. 



" Tail 22 inches across from tip to tip. 



"Anus 2 feet 2 inches in front of tail (centre of tip). 



" Eye f ths of an inch in diameter, situated 1^ inch behind angle of 

 mouth, and 12 inches from tip of upper jaw. 



" Lower jaw projecting 1 inch beyond the upper. 



" This Porpoise was occasionally seen, in small droves of from three 

 to six, along the north-east coast of Australia, within the reefs. Two 

 other species also were seen, but we could not fasten." 



The two skulls slightly diifer in shape and size. 



No. 1 is 17 inches long ; the beak to the notch is 10 inches, and 

 the upper teeth-bone 8| inches long ; the front lower teeth are worn 

 away and truncated, like the teeth of the common Delphinus tursio, 

 which was described as D. brunatus by Montague. There are 

 twenty-seven teeth on each side in the upper, and twenty-five teeth 

 on each side in the lower jaw. 



No. 2 is 17 inches long ; the beak 9|, and the upper tooth-bone 

 8 inches long. The teeth, twenty-four above (perhaps one on each 

 side is deficient, as the end of the jaw is very tender), twenty-three 

 or twenty-four below. The front lower teeth are slightly truncated ; 

 but this skull chiefly differs from No. 1 in being rather more convex 

 and rather narrower, especially in the hinder part, from the middle 

 of its length. 



I have compared these skulls with those of the different species of 

 Bottlenoses (Tursio) in the British Museum ; and they are perfectly 

 distinct from any of them. The species may be called Delphinus 

 catalania. It is smaller in size, and has a much smaller brain- 

 cavity than D. cymodice (Gray, Zool. Erebus & Terror, t. 19) and J). 

 metis (Gray, Zool. Erebus & Terror, t. 18) ; and the beak is not so 

 tapering as in these species, and the teeth are rather more numerous. 



It is equally distinct from Delphinus eurynome (Gray, Zool. Erebus 

 & Terror, t. 1 7), believed to be from the North Sea. 



