ON THE GREENLAND RIGHT-WHALE. 149 



The ligaments usually attached to the odontoid process are inserted into a deep pit, situated 

 in the middle line, between the articular surfaces of the condyles. The first dorsal vertebra has 

 not, in this instance, contracted any union with the seventh cervical. 



There are but eleven chevron bones, and certainly no more existed in an ossified condition ; 

 the first and the last three have the two lateral parts of which they are composed not united in the 

 mesial line ; the eleventh pair are disk-Kke bones, about an inch and a half in diameter, situated 

 in the interspace between the twelfth and thirteenth vertebrae from the termination of the tail. 



The ribs are but twelve in number, the last M'ell developed. From the great care with 

 which the skeleton was prepared it seems unlikely that any more can have existed and been over- 

 looked ; but the extremities of the transverse processes of the vertebra, following that which bears 

 the twelfth rib, are certainly somewhat enlarged, and present an imperfect articular surface ; this 

 may be, however, for a second attachment of the twelfth rib. 



The sternum is heart-shaped, but with the anterior border very slightly excavated, and the 

 posterior end much narrowed. It is twenty-two inches in length and twenty in breadth. 



The bones of the anterior extremities resemble, in their general arrangement, form, 'and 

 number, those figured at p. 139 ; there are some differences, however, in the carpal bones. 

 Between the bone (or rather cartilage) placed on the radial border of the carpus and the cartila- 

 ginous upper extremity of the pollex no trace of a division could be found, even on making a 

 section through them. There is no ossification in this cartilage ; while, on the other hand, the 

 cartilage representing the single bone of the distal row has a considerable osseous nucleus, though 

 extending only to the dorsal surface of the wrist. The projecting cartilage on the ulnar side, 

 representing the pisiform, has no osseous nucleus developed in it; the other two nuclei shown in 

 the figure are well developed, and attain both external surfaces of the carpus. The bones of the 

 digits precisely resemble, in number and arrangement, those shown in the figure. 



As an individual peculiarity may be mentioned a curious difference in the two humeri, the 

 upper or inner border of the right being two inches shorter than that of the left, while the outer 



