U. 6. NATIONAL MUSEUM 



BULLETIN 36, PL. XXIX 



Fig. 1. Lagenorhynchiis ohscurus (GrSLy). 



(From Gray: Spicilegia Zoologica; 1828, pi. 2, fig. 3.) 



^^ 



) 



Fig. 2. Lagenorhynchus obscnrus (Gray). 



(From Gray, Synopsis of the Whales and Dolphins, 1868, pi. 16.) 



Genus LAGENORHYNCHUS. 



