LÖNNBERG, THE PELVIC BONES OF SOME CETACEA. 



11 



As already has been stated by Abel (1. c.) the pelvic 

 bones of Spermwhales are very different in different speci- 

 Whether this is an individual variation, or if perbaps 



mens. 



different races of Spermwbales differ in the degree of develop- 



Fig. 8. The pelvic bones of a male Spermwhale from 

 South Georgia; ventral aspect. 



ment of their pelvic bones, cannot be stated for the present, 

 although the former condition appears to be more likely, as 

 will be further explained below. 



The pelvic bones of the Spermwhale from South Georgia 

 are almost equal in length measuring resp. 408 and 411 mm. 

 They are curved (fig. 9) and also somewhat twisted (fig. 10). 



