136 Zoological Proceedings of Societies. 



and the whole tooth approaches still more nearly to that of the Elephant, 

 while the jaw is in unison with the appearance of the tooth. 



Pachydermata ordinaria. — In this group we have the remains of the 

 genera Sus, Hippopotamus, and Rhinoceros. Of the first there is only a 

 single specimen, consisting of a small portion of the lower jaw, contain- 

 ing one molar tooth and the fragment of another. Of the second there 

 are but few fragments, nor are they sufficiently characteristic to warrant 

 a definition of the species, which must have been comparatively small. 

 Of the third there is a portion of the upper jaw, containing two molar 

 teeth; and portions of the lower jaw with molares, which seem to ap- 

 proach nearer to those of the Rhinoceros of Java than to those of any 

 other living species. 



Ruminantia. — In this group we have fragments of the Ox and of the 

 Deer. 



Reptilia. 



Chelonia, Cuv. — fTestudinata, Bell). — There are many fragments 

 of a large species of trionyx, and some of an emys. But the remains are 

 not sufficiently defined for specific description. 



Sauria. — Fam. Crocodilidee. — Of this family we have the remains of 

 two genera ; viz. a Leptorhynchus allied to, if not identical with, the 

 great gavial ; and a crocodile resembling Crocodilus vulgaris. Of the 

 former there are portions of the lower jaw and several vertebrae ; of the 

 latter, there is the anterior termination of the lower jaw, which must 

 have belonged to a very large individual. . 



The specimens, in general, do not appear to have undergone any mine- 

 ral change, with the exception of being abundantly penetrated with iron, 

 and are very brittle. This last circumstance, arising from the loss of their 

 animal gluten, indicates great antiquity, and that they have not been im- 

 bedded in any very compact soil ; imlike the teeth of the mastodon of the 

 Ohio, which lie in a strong blue clay, and have almost as much animal 

 matter as is to be found in a recent tooth. 



The bones are almost in every instance broken ; and from the firmness 

 of texture of most of them, the direction and cleanness of the fracture, and 

 the sharpness of its edges, the injury, which must have been the result of 

 an immeiise power operating with sudden violence, appears to have taken 

 place at the period, or very soon after the period, of the destruction of 

 the animal. 



