430 



PHYSETERID^. 



an open question until further materials and observations 

 have been collected ; but Prof. Turner is meantime 

 inclined to believe that they are all identical with 

 Z. cavirostris, and that that animal has as extended a 

 geographical range as the Cachalot. 



If Risso's Delphinus desmarestii (Eur. Merid., III., p. 24) 

 is identical with this species, as seems probable, the 

 colour is steel-grey with irregular white streaks — in fact 

 similar to that of Sowerby's Whale. Doumet describes 

 his Corsican specimen as having the jaws covered with 

 small hard tubercles. 



Our illustration is a copy of Doumet's figure {Revue 

 Zoologique, 1842, pi. I., fig. 2); the vignette represents the 

 Shetland skull as figured by Prof. Turner. 



