1864. | SPECIES OF GRAMPUS FROM TASMANIA. 425 
under the name of Orca intermedia. This is evidently that of a 
very young individual, probably of one of the above-mentioned large 
species. At all events the number of the teeth ) and the form of 
the premaxillaries distinguish it from the Tasmanian skulls. 
To find distinctive characters to separate the present species from 
O. crassidens is a matter of greater difficulty. I speak of the ani- 
mal now existing in the northern seas, which Reinhardt has fully 
described in an illustrated memoir in the Danish language, and which 
he believes to be identical with the Lincolnshire specimen. Not 
having yet been able to get a translation of Professor Reinhardt’s 
paper, I cannot make so good a comparison as is desirable, though 
the figures which he gives to a great extent supply the deficiency. 
In the first place I must remark that the O. crassidens is of very 
rare occurrence in the northern seas, having been only recently added 
to the Scandinavian fauna. Our “ Biackfish,”’ on the other hand, 
appears to be the most abundant of the Cetacea inhabiting the seas 
around Tasmania. It is possible that, being a warm-water animal, 
it may occasionally cross the line and stray into northern latitudes ; 
but the belief is gaining ground among naturalists who have speci- 
ally investigated the Cetacea, that the geographical range of the dif- 
ferent species of the order is much more limited than at one time 
supposed. 
Professor Reinhardt’s figure of the external form of his specimen 
differs widely from Mr. Crowther’s description, the dorsal fin being 
situated rather anterior to the middle of the back, and the head being 
small and flat, certainly offering no peculiarity which could cause it 
to be compared to the Sperm-Whale by men practically acquainted 
with the distinctive characters of these animals. In size the skulls 
nearly correspond, the two of which Reinhardt gives the dimen- 
sions being each 24:7 English inches long. In general characters 
also, in the proportions which the beak bears to the rest of the 
skull, and in the breadth of the intermaxillaries, they agree very 
closely. A minuter inspection, however, shows differences which, 
presuming Professor Reinhardt’s figure to be correct, could scarcely 
be found among individuals of the same species. The Tasmanian 
skull is narrower in proportion to the length, the beak is much more 
pointed at the extremity, and the premaxillaries are of different form. 
In Pseudorca crassidens they are of nearly equal breadth from one 
end to the other, their outer margins being almost parallel; in the 
Tasmanian skulls they are contracted at the root of the beak, and 
then gradually expand to about the middle, beyond which they slowly 
diminish in breadth to the point. An examination of the skulls 
placed side by side might possibly reveal other differentiating cha- 
racters ; but I think that these are sufficient, together with the great 
improbability of the same species being found in such widely different 
regions, to justify my regarding the small Grampus from Tasmania, 
however familiar to the inhabitants of that country, as a species new 
to zoological literature, and imposing upon it the name of Orce 
(Pseudorca’) meridionalis. Probably, as in the case of some other 
