U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XXVI 



Fig. 1. WHITE-BEAKED DOLPHIN. 

 Lagenorliynchus albirostrig Gray. 



(From LiJtken, Kgl. Danske Videnskabs Selskabs Sknfter, 6"' Reekke, iv, 1887, pi. 2.) 



Fig. -2. WHITE-BEAKED DOLPHIN. 

 Lagenorhynchus albirostn's Gray. 



(From Gray, Synopsis of the Whales and Dolphins, 1868, pi. 11.) 



Genus LAGENORHYNCHUS. 



