414 FOSSIL KEMAINS FEOM ATTOCK. 



XXV. NOTES ON FOSSIL EEMAINS FOUND IN THE 

 VALLEY OF THE INDUS BELOW ATTOCK, 

 AND AT JUBBULPOOR.i 



I HAVE examined the fossils from Attock presented to Dr. 

 Oldham by Lieutenants Garnett and Trotter. They are very 

 interesting. Among them I have found the following : — 



1. A species of Dinothermm, probably new. Of this there 

 are two undoubted molars. The first is apparently the pe- 

 nultimate or first premolar, upper jaw, right side. At least, 

 this is inferred from its form and an obscure disc of pressure 

 on the posterior side, and from there being no disc of pres- 

 sure in front. The tooth consists of a longitudinal ridge 

 on the outer side, the enamel edge of which is rounded o&, 

 but not much worn. It is convex in its an tero -posterior 

 direction, and separated by a broad valley from two inner 

 mastoid points. These points are sub-pyramidal, the apex 

 of the anterior one being slightly pitted by wear. There are 

 no transverse ridges. In the first penultimate milk molar of 

 Kaup (Plate I.) the anterior ridge is bifid ; in this it is quite 

 entire. The tooth also shows very large fangs. 



The Indian fossil is smaller than the European. It differs 

 also in the following respects. The surface of the crown is 

 free from the vertical groove ; the anterior talon is much 

 more salient ; the crenulated bourrelet is limited to the ends 

 and there is a bridge between the inner points ; whereas in 

 the European fossil the crenulated bourrelet runs all round. 



The second specimen, judging from its square proportions, 

 is the antepenidtimate true molar, upper jaw, right side. 

 The two anterior ridges are well worn ; the last ridge is 

 barely touched ; only the crenatures are gone. In form it 

 is very like the tooth of the European species. The last 

 ridge is somewhat concave and crescentic across, as compared 



' These fragmentary notes are extracted from Dr. Falconer's note-boolcs.— [Ed.] 



