PSEUDORCA CRASSIDENS. 
213 
can hardly be said to be placed on the side of the scapula, as it forms, on the contrary, a narrow 
surface slightly excavated, and turned in a forward direction . 1 The pointed pectoral fin itself, 
Fig. 3. 
in its outline, more resembles the same member of the ca’ing-whales, and partly that of Grampus 
griseus, than that of the Orcas; but still it essentially differs from the pectoral fins of the 
former by its inconsiderable length, and its much smaller size, generally speaking. In the carpus 
there are five bones, two of which are placed beneath the ulnar bone, two under the radius, 
and the fifth again under the latter two between the radius and the first phalanges of the second 
and third finger. Some of these bones may sometimes be ankylosed in old individuals; such 
at least, is the case in the Asnaes dolphin, with the two placed beneath the ulnar bone. In the 
male from Middelfart, the fingers were mutilated and incomplete, in both pectoral fins; in 
the Refsnaes dolphin there are two phalanges in the thumb, seven in the second finger, six 
in the third, three in the fourth, and two in the fifth finger, including the five metacarpal 
bones. 
Very different is the structure of the manus of the Globiocephali. In the skeleton of a 
very large and old ca : ing-whale from the Faroe Islands, I find four phalanges in the thumb 
(though only in the right one, the left has but three), fourteen in the second, ten in the third, 
three in the fourth, and two in the fifth finger. Thus, the two fingers on which the length of 
the manus depends have almost twice as many phalanges in the ca’ing-whale as in the dolphin 
1 Cuvier says very little about the scapula of his Delphinus griseus; a comparison between this 
and the scapula of the species here described, must, therefore, be founded essentially ou his very 
small figure (‘ Recherches sur les Oss. Foss./ 4th ed., pi. 224, fig. 15) ; but it is doubtful whether 
such a comparison can be made with profit, especially as we are not quite sure, whether some 
mistake has not occurred relative to this figure. It is, at least, a suspicious circumstance, that this 
scapula, which is that of an animal that can not have been more than three and a half metres long, is 
in the figure considerably larger than the scapula of the much greater ca’ing-whale (fig. 16 of the same 
plate), though both are said to be represented at one eighth of their natural size. I have, therefore, 
not thought it right to found any comparison on this figure. 
