12 Transactions, — Zoology, 



very much foreshortened : as Dr. Hector remarks, it is not like the macerated 

 bone, which has all the characters of the scapula of B. musculus. So that, 

 on examination, there seem to be positively no definite characters upon 

 which the Port Underwood whale can be separated from B. musculus. This 

 is evidently Dr. Hector's opinion,* although he still adheres to the name 

 B. australis. 



In Haast's New Brighton! specimen the position and form of the dorsal 

 fin were unfortunately not ascertained ; in every other respect the agree- 

 ment with B. musculus is quite close. 



There seems therefore to be, as far as the information at my disposal 

 goes, complete specific identity between at least two well-authenticated 

 specimens of the Southern Eorqual and its northern representative. And 

 it would further appear that in every respect in which the Nelson specimen 

 differs from B. musculus, it also differs, and in the same manner, from the 

 so-called B. australis. 



On the whole it seems to me that one is justified in assigning the 

 present specimen, as well as the Port Underwood and New Brighton speci- 

 mens, to Balanoptera musculus, at least until the accurate examination of 

 both external and internal characters in the same individual has definitely 

 proved the existence of a distinct species of Southern Eorqual. 



In the skeleton as mounted the intervertebral ligaments are represented 

 by pads of felt, and the following missing bones by wooden models : — 

 The eight posterior caudal vertebrae (18th-25th). 

 The three posterior chevron bones (14th-16th). 

 Both pelvic bones (modelled from Haast's figure of the pelvis of 



the New Brighton specimen). 

 In the right manus 



The 1st phalanx of the 2nd digit. 



The 4th and 5th phalanges of the 3rd digit. 



The 1st, 3rd, and 5th phalanges of the 4th digit. 



The 2nd and 3rd phalanges of the 5th digit. 

 In the left manus 



The 5th phalanx of the 3rd digit. 



The 1st, 3rd, and 5th phalanges of the 4th digit. 



The 2nd and 3rd phalanges of the 5th digit. 



* "Notes on the Whales of the N.Z. Seas," Trans. N.Z. Inst., vol. x., p. 336, 

 t P.Z.S., 1883, p. 592, 



