U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XLVI 



Fig. 1. WHITE WHALE. 



Delphhiapterus leucas (Pallas). 



(From a photograph of a specimen received by the Smithsonian Institution.) 



Fig. 2. WHITE WHALE. 



Delphinapterus leucas (Pallas). 



(From Van Beneden and Gervais, Oste'ographie des Cetaces, 1868-79, pi. 44, tig. 2.) 



Fig. 3. Delphinaptenis Tcingii (Gray). 



(From Gray, Synopsis of the Whales and Dolphins, 1868, pl, 7.) 



Genus DELPHINAPTERUS. 



