'^IS" Z&o logical Proceedhigs of Societies, 



obtaine4 from the tertiary deposits on the Braraahpootra River, in the 

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

 by David Scott, Esq., and referred to in a Ibrmer volume of the Transao- 

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

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

 vjz. — "^ « 



1 . A species of the genus Anthracotherium of Cuvier, which the authour 

 'V |l proposes to distinguish^by the name of Anth. Sillistrense, a specific deno- 

 mination derived from one of the many names by which the great Bra- 



iRfiahpootra River appears to have been designated by ancient geographers. 



2. A small species of the order Ruminantia allied to the genus Moschus. 1^ 



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 known. / • ' ^^n 



4. A carnivorous animal of the genus J^iverra. 



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

 secondary Deposits on the JS^orth Coasts of Scotland, by the Rev. Adam^ 

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

 which the authours notice the fossil fishes of the secondary depc^its of 

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

 *alcareo-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 ahdbminales, 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- 



