10 



ARKIV FÖR ZOOLOGI. BAND 7. N:0 10. 



of a femur adherent to either pelvic rudiment when they 

 arrived here, and if there ever has been any such they ha ve 

 probably been only cartilaginous. 



The pelvic rudiment of Balcenoptera intermedia is most 

 similar to that of its northern ally the Blue Whale. 



Fig. 7. Rudimentary pelvic bone of Balccnoftera intermedia. 



The pelvic rudimeiits of a Speriinvhale (Pliyseter catodon) L. 



A skeleton of an old male Spermwhale caught in the 

 seas near South Georgia has been presented to the R. Nat. 

 Hist. Museum by Mr. H. H. Schlieper. The pelvic bones 

 of this skeleton are represented in figs. 8, 9 and 10. 



I 



