U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XV 



Fig. 1. Prodelphinus euphrosyne (Gray). 



(From Pucheran, Revue et Magasin de Zoologie, 2d series, viii, 1856, pi. 25. D. marginutus.) 



Fig. 3. Prodelphinus eiiph)-ost/)te (Gray). 

 (From Gray, Synopsis of Whales and Dolphins, 1868, pi. 22.) 



Fig. .3. Proddpliinux (':) Icttefcdis (Pealei. 



(From Peale U, S Exploring Expedition, Mammalogy and Ornithology, Atlas, pi. 8, fig. 1.) 



Genus PRODELPHINUS. 



