512 Zoological Proceedings of Societies. 



obtained from the tertiary deposits on the Bramahpootra River, in the 

 small state of Cooch-Behar, presented to the Society some years ago, 

 by David Scott, Esq., and referred to in a former volume of the Transac- 

 tions, the remains of four distinct species of Mammalia, making an 

 interesting addition to the list already published by Mr. Colebrooke, 

 viz. — 



1. A species of the genus Anthracothermm of Cuvier, w^hich the authour 

 proposes to distinguish by the name of Anth. Sillistrense, a specific deno- 

 mination derived from one of the many names by w^hich the great Bra- 

 mahpootra River appears to have been designated by ancient geographers. 



2. A small species of the order Ruminantia allied to the genus Moschus. 



3. A small species of herbivorous animal referrible to the Pachyder- 

 mata, but more diminutive than any of the fossil or living species of that 

 family at present knovra. 



4. A carnivorous animal of the genus Viverra. 



May 16. — A paper vras read On the Old Conglomerates and other 

 secondary Deposits on the Morth Coasts of Scotland, by the Rev. Adam 

 Sedgwick, V.P.G.S., &c., and R. J. Murchison, Esq., For. Sec. G.S., in 

 wrhich the authours notice the fossil fishes of the secondary deposits of 

 Caithness, &c. These seem to be contained almost exclusively in the 

 calcareo-bituminous schist. They do not appear to be confined to any 

 particular part of it, but were found in various localities, some in the 

 lowest and others in the highest part of the series ; and in many places 

 scales and imperfect impressions exist in the greatest abundance. Some 

 imperfect specimens were examined during a preceding year by the Baron 

 Cuvier, who found that they all exhibited a pointed tail (with the rays 

 exclusively on the lower side, as in the fish of the copper-slate of Thu- 

 ringia) , and notwithstanding the great imperfection of the specimens, he 

 concluded that they were of the order Malacopterygii abdominales, and 

 analogous to the bony Pike. Since that time much more perfect speci- 

 mens have been procured, which have been examined by Mr. Pentland ; 

 who has not only been enabled to confirm the conjectures of Baron 

 Cuvier, but has ascertained two new genera, each containing two species. 

 The first genus, Dipterus, has a double dorsal fin, and the other fins are 

 nearly in the same position as in the Esocii. One of the species, Dipte- 

 rus macrolepidon, is remarkable for the size of its scales, which some- 



