U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XVIIl 



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Fig. 1. SPOTTED DOLPHIN. 

 Prodelphinus plagiodon (Cope). 



(From a photograph taken on boaid the U S. Fish Commission Steamer Albatross.) 



Fig. 2. SPOTTED DOLPHIN. 



Prodelphinus plagiodon (Cope). 



(From the type-skull, No. 3884. in the U. S. National Museum.) 



Genus PRODELPHINUS. 



