Dr. H. Burmeister on a netu Whale. 57 



process at all, but a much stronger superior one, of the same form. 

 All the five vertebrae after the second are very thin, 2 inches in 



Sixth cervical vertebra. 



diameter, the third being the thinnest of all, and the following ones 

 somewhat thicker ; the seventh is 2| inches in thickness. 



" Of costal or dorsal vertebrae we have fourteen, very well indicated 

 by the flattened end of the transverse processes being united with the 

 ribs. The first of these dorsal vertebrae is very thin, 3 inches in 

 diameter ; and the second somewhat thicker, 3| inches ; after these 

 the bodies are much stronger, from 6 to 8 inches in diameter. The 

 three first dorsal vertebrae have transverse processes more rounded, 

 and directed forward. After the third they are more flat and broad, 

 and directed transversely to the sides. After these fourteen vertebrae 

 follow twelve others with thinner transverse processes, rounded and 

 sharp at the end, and with bodies of much larger diameter — from 

 10 to 12 inches. Then follows a strong vertebra, the thirteenth, 

 1 2 inches in diameter, with a smaller and shorter transverse process, 

 which seems to me the first caudal ; but as the epiphysis is wanting, 

 there is no attachment for the haemapophysis on its hinder end. In- 

 deed its body is flattened on the under side, not carinated as the body 

 of the antecedent ; which also seems to me to prove that it is the 

 first caudal. Of haemapophyses we have four in the Museum, of un- 

 equal size, the first 5 inches high, the largest 8 inches, and 3 to 

 4 inches broad between the laminae. 



" The ribs are not perfect as regards number, but the first seven 

 or eight are preserved, I send you drawings of the upper and lower 

 extremities of the first four (figs. 6, 7, 8, 9). 



" The sternum is wanting, and of the os hyoideum we have only 



