U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XXXIII 



Fig 1 Ce2)halorhynchus hectori (Vein Benedeu). 



(From Van Beneden, Bulletin de lAcademie Royale de Belgique, 3d series, i, 1881, pi. 2.) 



Fig. 2. Cephalorhyncfms eulropia (Gray). 

 (Fronfi Gray, Synopsis of the Whales and Dolphins, 1868, pi. 34 J 



Genus CEP' ^ORHYNCHUS. 



