412 FOSSIL FISH. 



very common at Vestena Nuova ; as we find also that the 

 tunny is very common in the Mediterranean. 



S. cordyla, Icht. Ver. An impression sufficiently well 

 preserved to exhibit many relations with Scomber cordyla, from 

 which, however, it differs in having the first dorsal fin and the 

 body more elongated. 



S. trachurus, Icht. Ver. An incomplete impression, which 

 M. de Blainville is more inclined to refer to the Scomber 

 pneumatophorus of De Laroche. 



S. Kleiniif Icht. Ver. This impression is sufficiently well 

 preserved to warrant the conclusion that it belonged to a species 

 of the subgenus trachurus^ but that it is the scomber of Klein 

 is somewhat doubtful. 



S. ignobilis, Icht. Ver. In the general form of this ich- 

 thyolite, which is tolerably entire, nothing very analogous with 

 the species of this genus is to be found. In fact, the belly is 

 very convex ; the head very small ; the ventral fins extremely 

 large, and also the first dorsal, which is evidently much more 

 raised than the other. M. Volta was induced to regard it as 

 the analogue of the species above named, only by the existence 

 of a little point between the two dorsal fins. 



S. speciosus, Icht. Ver. It is very probable that this fine 

 impression belonged to a species of this genus, but not quite 

 so certain that it belonged to that just named. Forskael tells 

 us expressly that Scomber speciosus has no teeth, while there 

 are small ones to be seen in the fossil. But the number of 

 rays in the two dorsal fins appear to be alike ; and the scales, 

 moreover, seem to have been pretty large in this fossil. The 

 impression referred by M. Volta to S, glaucus is more likely 

 to have belonged to this species. 



S. pelagicuSf Icht. Ver. Though this fossil has evidently 

 belonged to a species of the genus of Scomber, with an elon- 

 gated body, and which, probably, had but a single dorsal fin, 

 we cannot by any means be certain that it belonged to Scomber 

 pelagicus. 



