FOSSIL FISH. 393 



as our sketch has been, it is sufficient to convey to the reader 

 an idea of the immensity and the extension of the remains 

 of this class of vertebrated animals. We must now give a 

 notice of the principal genera and species to which these 

 remains have been supposed to belong, craving indulgence also 

 for the imperfection of our attempts in this way, which must 

 be attributed as well to the actual state of the subject as to 

 our own limited opportunities of observation. The great work 

 on fish, on which Baron Cuvier has been so long employed, 

 will, doubtless, when given to the world, shed much additional 

 light on the fossil as well as the living genera and species of 

 this most important division of the animal kingdom. 



In the locality of Glaris the remains found are referred by 

 M. de Blainville to the following genera : — 



1. Anenchelum. Si^ecies^ a. Glarisianum. De Blainville. 

 This was, for a long time, referred to the eel kind ; but M. de 

 Blainville having examined the remains, which consisted of a 

 part of the head and a large portion of the posterior extre- 

 mity, did not hesitate to pronounce that this fish had a caudal 

 fin, quite distinct from the anal and dorsal ; and, moreover, 

 that the latter, much longer than the two former, had much 

 more expanded radii, and, consequently, much less numerous 

 than in the eel. The vertebrae, also, are much narrower, much 

 longer, and consequently less numerous in a given space. 

 M. de Blainville makes, therefore, a distinct genus of this fish, 

 under the name above cited. 



2. PALiEORHYNCUM, another genus provisionally formed 

 by M. de Blainville. The species is P. Glarisianum, This 

 was taken to be the Thornbacky but, as it would seem, erro- 

 neously. The remains represent the muzzle very much elon- 

 gated and pointed. 



3. Herring. ClupcBa. The impression of this was figured 

 by Scheuchzer, in his Querelce Piscium. It indicates a fish 

 whose body was narrow and elongated. The caudal fin is 

 bifurcated, and the dorsal is situated between the pelvian and 



