138 BULLETIN 36, UNITED STATES NATIONAL MUSEUM. 



GLOBICEPHALUS xMACRORHYNCHUS Gray. 



Globiocephalus macrorhynchns, Gray, Zool. Erebus uud Terror, 1846, p. 33; Cat. 

 Seals aud Whales, 1866, p. 320, 



Tliis species is founded on a single skull, No. 3000, in the Royal Col- 

 lege of ISurgeons, London, to which institution it was presented by 

 F. D. Bennett. The locality from which it was derived is unknown. 



I regret to find that I made no notes upon this skull and have only 

 my measurements for comparison. As the skull is a youngish one 1 do 

 not trust myself to draw any conclusions from the consideration of the 

 measurements alone. 



In his paj)er on the Delphinidw, Professor Flower is inclined to believe, 

 though with some hesitation, that the blackfish skulls with broad inter- 

 maxillic all belong to the same species. I have since satisfied myself, 

 however, that two forms, G. hrachypterus Cope and G. scammoni Cope 

 are perfectly distinct, and the question now arises whether either of 

 these species is identical with G. macrorhynchns. As I neglected to take 

 notes upon the type-skull, I am, unfortunately, unable to throw any 

 light on this question. The measurements which I took are subjoined : 



Tabic of mcasitremeuts. 

 GLOBICEPHALUS MACRORHYNCHUS. 



' Posterior to tlui notch. 



t Actual lenffMi ; not from end of beak. 



