294 THE GEOLOGIST, 



points out that these trap-rocks were erupted beneatli the waters of a lake or 

 lakes of no great depth, in the Nagpur district ; whilst towards the south-east, 

 about the mouths of the Godavery, there were estuaruie and marine deposits 

 being formed. 



The author formerly thought that the sandstone at Nagpur, underlying the 

 lower trap and overlying the gneiss, was of Jurassic age, and once continuous with 

 that of Kx)rhadi, Mangali, &c. ; but he now believes that it belongs to the Tertiary 

 series. It contains abundance of silicified wood, and a few Paludince. This ter- 

 tiary sandstone is metamorphosed into gneiss by the intrusion, apparently, of some 

 deep-seated plutonic rock, evidenced by veins of pegmatite. 



Some minerals from the trap, gneiss, &c. were then enumerated, especially the 

 "Hunterite" and "Hislopite" lately discovered by Prof. Haughton. 



The Fossils were next alluded to : namely, Fish-remains— some like the Sphij- 

 rcenodus of the London Clay ; also Reptilian remains, and bones of Pachyderms. 

 The Shells, both freshwater (from the neighbourhood of Nagpur) and marine (from 

 Rajamandri, near the mouth of the Godavery), were described by the author in 

 detaU. Gyprides are numerous ; some have been described by Mr. Sowerby, and 

 some new forms will be described by Mr. Jones. Plant-remains are abundant, but 

 have not been yet described. Many remains of Insects occur ; and, as far as Mr. 

 Andrew Murray can form an opinion on them, they differ from recent species. 



The author, after comparing the fossil shells of Nagpur with those of the Num- 

 mulitic fauna described by Viscount D' Archiac, and with the recent fauna of India, 

 offered the conclusion that they are probably of Lower Eocene date. The nearest 

 European analogue is found in the Physa-bed {Physa gigantea) at Rilly, in France. 



These Tertiary deposits, with their pachydermatous remains, are decidedly (in 

 the author's opinion) older than those of the Sewalik Hills, so well known from 

 Cautley and Falconer's researches. There are yet newer deposits, with huge fossil 

 bones (probably of Upper Pliocene age), on the banks of the Nerbudda and 

 elsewhere. 



Lastly, the author observed that the "diamond-sandstone" of India belongs 

 to these Eocene deposits ; and, since its formation, plutonic rocks have risen to 

 the surface and rock-masses have been metamorphosed. 



Shells from the freshwater strata of Nagpur and neighbouring parts of Central 

 India (all, but three, new species) — Melania quadrilineata, /. Shy. ; M. Plunteri ; 

 Paludina normalis ; P. Deccanensis, /. Sly. ; P. Wapsharei ; P. acicularis ; P. 

 pyramis ; P. subcylindraca ; P. Sankeyi ; P. Takliensis ; P. soluta ; P. conoidea ; 

 P. Rawesi ; P. Virapai ; Valvata minima ; V. unicarinifera ; V. multicarinata ; 

 V. decollata ; Succinea Nagpurensis ; Limnsea oviformis ; L. subfusiformis ; 

 L. attenuata ; L. peracuminata ; L. Spina ; Physa Prinsepii, /. Shy., var. elon- 



fata, var. inflata ; Ph. Bradleyi ; Unio Malcolmsoni ; U. Hunteri ; U. cardioides ; 

 J. mammillatus ; U. imbricatus ; U. Carteri. 



Shells from the estuary strata near Rajamandri (all new species)— Pseudo- 

 hva elegans ; Natica Stoddardi ; Cerithium multiforme ; C. subcylindraceum ; C. 

 Leithi ; C. Stoddardi ; Vicarya fusiformis ; Turritella prselonga ; Hydrobia Elhoti ; 

 Hemitoma? multiradiata ; Ostrea Pangadiensis ; Anomia Kateruensis ; A. modiola ; 

 Perna meleagiinoides ; Modiola, sp. ; Corbis elliptica ; Corbicula ingens ; Cardita 

 variabilis ; Cytherea orbicularis ; C. Wilsoni ; C. Wapsharei ; C. Rawesi ; C. Jer- 

 doni ; C. elhptica ; C. Hunteri ; Tellina Woodwardi ; Psammobia Jonesi; Corbula 

 Oldhami ; C. sulcifera. 



Fossil Insects from the Tertiary strata near Nagpur— Zowia^tts Hislopi, nov. ; 

 and three other Buprestidce (indefinable). Meristos Hunteri, nov. ; and seven 

 other Curculionidce (indefinable). 



1 extensive collection of fossils from Nagpur, including those collected by the 

 late Dr. Malcolmson, were exhibited.] 



