DESCRIPTION OF PLATES. 133 



large, and were evidently of great strength and massiveness. All trace 

 of the first molar, which is very small and deciduous, has disappeared. 

 The second molar has two fangs, and is encircled by a rugged basal 

 ridge. The carnassier is very remarkable, and presents the prominent 

 feature of the genus. It is nearly square, instead of being triangular, 

 as in both Lutra and Enhydra ; and instead of the cusps and trenchant 

 ridges of Lutra, or the flattened inequalities of Enhydra, the coronal 

 lobes are developed into cervical mammilhe, somewhat like those of the 

 Mastodon. A more detailed description of this tooth will be found in 

 Dr. Falconer's memoir on 'Enhydriodon.' Behind the carnassier, 

 the tubercular is seen in situ. — B.M. No. 87,155. 



Figs. 6, 6 a, and 6 b. — Enhydriodon ferox. Fine specimen of ante- 

 rior portion of cranium of a young and probably female individual. 

 Shows three incisors on either side, the two inner of which are very 

 much compressed laterally, so that their antero-posterior diameter is 

 three times that of their width. The outer incisors are remarkably 

 large, as are also the canines. The left canine has dropped out, leaving 

 a large oval alveolus ; the right canine is seen in section. Behind the 

 canine, on either side, is an extremely small empty alveolus of the first 

 deciduous molar. Then comes the bicuspid second molar, the peculiar, 

 square, mammillated carnassier, and the tubercular. — B.M. No. 87,154. 



Plate Q. 

 Carnivora, from the Sewalik hills. 



Figs. 1, 1 a, and 1 b. — Skull, showing palate and teeth, of a fossil 

 species of Canis ? from the Sewalik hills. 1 — B.M. No. 40,183. 



Figs. 2, 2 a, and 2 b. — Skull, showing palate and alveoli of entire 

 dental series of a fossil species of Canis ? from the Sewalik Hills. — B.M. 

 No. 37,150. 



Fig. 3. — Fragment of palate, right side, with two posterior molars of 

 fossil Canis ?— B.M. No. 40,180. 



Figs. 4, 4 a, 4 J, and 4 c. — Ursitaxus Sivalensis. Very perfect 

 cranium and face of a species of Batel from the Sewalik hills. This 

 appears to be the specimen of fossil ' Gulo ' described by Messrs. Baker 

 and Durand, in the Journ. As. Soc, vol. v. p. 582, and figured in Plate 

 XXVLT. fig. 5, of the same volume.— B.M. No. 40,184. 



Plate E. 



Fossil Remains of Birds from the Sewalik hills. 



Figs. 1 and 1 a. — Cervical vertebras of a bird. — B.M. No. 23,105. 



Figs. 2, 2 a, 2 b, 2 c, and 2 d. — Lower end of tibia. — B.M. No. 

 39,732. 



Figs. 3, 3 a, 3 b, and 3 c— Lower end of ditto.— B.M. No. 39,735. 



Figs. 4, 4 a, and 4 5.— Lower end of ditto. — B.M. No. 39,737. 



1 Another specimen belonging to Dr. 

 Falconer, and labelled by him ' Skull of 

 fossil Canis, from Sewalik hills,' has, 

 since his death, been added to the col- 



lection in the British Museum. Along 

 with the skull are portions of the femur, 

 tibia, and bones of the foot. 



K 



