THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 



BALJENOPTERA MUSCULUS (L.). GREENLAND AND NEWFOUNDLAND. 



191 



The correspondence between these measurements is sufficient to show that the 

 Greenland specimen is at least very close to the Newfoundland Sulphurbottom, if 

 not identical with it, which probability is strengthened by many points in Holler's 

 description. The chief differences shown here and in the other data given by 

 Moller are : (1) the dorsal fin is lower ; (2) the color is black. 



Regarding these points it may be said, first, that in view of Eschricht's remarks 

 regarding the dorsal fin, it is uncertain whether Moller measured the height in the 

 same manner as myself; second, Holler's specimen had been dead three days when 

 he saw it and perhaps much longer, so that it is quite natural it should be described 

 as black. It is to be noted that the parts protected from the light are described as 

 gray. 



The case of this Greenland specimen (and the species it represents) remains, 

 therefore, substantially as Eschricht left it, namely, with a very strong probability 

 that it was identical with B. musculus (L.), but with positive determination impos- 

 sible from lack of more extended data. 



1 This length is from the tip of the mandible to the notch of the flukes. In computing the 

 percentages here and on p. 159, eighteen inches were subtracted for the overhang of the lower jaw. 

 J To the middle of the genital orifice. 



