STENO ROSTRATUS. 



27 



of its length, which makes this a very broad-beaked specimen. Meas- 

 ureraents^'from figures, however, are not always to be relied upon. In 

 the description Cuvier gives the number of teetli as |^, wliile tlie 

 fio-urc shows 21 in the left side of the upper jaw and 24 in the lower 

 ja°w No. a3047 iu the Paris Museum, labeled S. rostratus, aud also 

 hredanensis, belongs to the opposite end of the series. The breadth of 

 the rostrum at the middle is but 12.2 per ceut. of its length. This was 

 probably one of the specimens already in the museum in Cuvier's time. 



Stow compressiis Gray. 



The type of this species, Ko. 24Ga of the British Museum, is a skull 

 with tolerably narrow rostrum and rather numerous teeth, but appar- 

 ently without other characters serving to distinguish it from the skulls 

 in the Paris T^Iuseum and in other collections. It is improbable, there- 

 fore, that it represents a distinct species. 



Delphinns reimcardtii Schlegel. 



The type of this species is apparently the No. 24 of the Leiden Museu m. 

 This is a large skull with a long, narrow rostrum and a rather large 

 number of teeth f-g). It does not differ from the skulls which Gray 

 called S. comi)yessm,m^, in other words, is a narrow-beaked individual of 

 S. rostratus. 



BelpMnns hredanensis Van Breda. 



As already stated Van Breda described this species before Cuvier 

 had discovered that the skins originally accredited to S.rostmtus were 

 of quite another species. Van Breda perceived that these skins were 

 different from that of his specimen but concluded that the case was one 

 in which two species very different externally were alike as regards 

 cranial characters. Van Breda's figure, however, convinced Cuvier that 

 he was in error, aud caused him to accept the same as representing the 

 true external characters of his D.frontatus or rostratus. 



Steno fuscns Gray. 



SlcMofuscus, Gray, Zool. Erebus & Terror, 1840, p. 44, pi. 26, fig. 1. 



What the relationships of this species are, and whether it is a Steno 

 at all, must probably always remain in doubt. Gray makes the follow- 

 ing statement iu regard to it: 



luLab. Cuba, W. S. MacLeay, Esq. 



This species is only known by a fcetal specimen in spirit, not in a very good state, 

 rreseuted to the British Museum by W. S. MacLeay, Esq. 



The figure represents an animal resembling ProdeliMnus ohscurus, or 

 indeed not unlike Van Breda's Steno hredanensis. The forehead is not 

 separated from the beak by a transverse groove. 



