80 



purplish grey ; there are also two other bands, paler in colour ; the 

 one branches from opposite the pectoral fin, and passes downwards 

 and forwards ; the other connects the eye with the pectoral fin. 

 Inhab : Pacific Ocean. 



*** Teeth about six in an inch. 



DELPHINUS MiCEOPs 1 , G-ray. The Small-headed Dolphin. 



Synonyms Delpninus microps, Gray, S. & "W., p. 240. 



Clymenia microps, G-ray, Suppl., p. 69. 

 Teeth Jfis, six in an inch. . . 



Described from skulls only. 

 Inhab : Coasts of Brazils. 



DELPHrtois STYX, Gray. The Styx. 



Synonyms DelpJiinus Styx, Gray, S. & "W., p. 250. 



Clymenia Styx, Gray, Suppl. S. & W., p. 70. 



Teeth 55:5, slender, six in an inch. 



The skull very like to that of D. Euphrosyne, but the teeth more 

 slender. 



Inhab : "W. Africa. 



DELPHINTIS TETHTOS, Gervais. The Tethyos. 

 Synonym DelpJiinus Tethyos, Gray, S. & "W., p. 251. 



Teeth? 



Inhab : North Sea South Atlantic. 



DELPHINUS ALOPE, Gray. The Alope. 



Synonyms DelpUnus Alope, Gray, S. & W., p. 252, 399. 

 Clymenia Alope, Gray, Suppl., p. 70. 



Teeth US, very slender, six in an inch. 



Inhab. : Cape Horn. 



The skull only known. 



The organic remains of several species, closely allied to this family 

 and the preceding one, have frequently been discovered in the strata 

 of the Meiocene period. Of these it is sufficient to notice that 



The Delphinus pseudodelphis, Gervais, is so similar in the form of 

 the skull and of the teeth to the Steno attenuatus that Dr. Gray 

 suggests they may be of the same species. 



The Delphinus dationum, Laurillard, and the D. vermontanus, Z. 

 Thompson, approach in structure to the common dolphin ; and 



The Delphinus Eenovi, Laurillard, greatly resembles the modern 

 Delphinus longirostris. 



1 fJLiicp6s, email, and &ty, the face. 



