MISCELLANEA. 

 MOLLUSCA. 



On the Genus 3Iysorian Godwin-Austen. 



This was described in the Records of the Indian Museum, VoL 

 XVI, pt. iii, April 1919 ; type Bithynia costigera, Kiister. I find 

 the name is preoccupied, Mr. G. K. Gude has kindly pointed this 

 out to me. It has been used for a genus of the Insecta, Zoological 

 Record, 1893, p. 248. I have therefore to propose in lieu the title 

 Mysorella. In connection with this genus Dr. Annandale in a 

 recent letter dated 4th June alludes to species of Valvata from the 

 intertrappean beds of Nagpur. It is interesting we had come 

 independently to the same opinion. When looking at Plate XIV, 

 Geology of India by Medlicott and Blanford my attention was called 

 to the figure of the species nmUicarinata placed in Valvata, and 

 which appeared much more likely to be a Mysoria or rather a 

 Mysorella. Valvata minima ^ it would be necessary to see in its fossil 

 state, it is so small, and only one view of it is given 



The generic position of many species on this plate appear to 

 me very doubtful, particular 1}^ those of Lymnea suhulaia, telankhe- 

 diensis and spina, those assigned to Paludina and even Physa 

 prinsepii. It would be most interesting to examine the fossils ; 

 this I hope to do, should they be represented in the Natural History 

 Museum. They certainly require critical examination. They 

 belong to a very distinct molluscan fauna and further close search 

 in beds of this age would no doubt vield many more species. It is 

 apparent ver}^ much has to be done in these intertrappean beds, 

 with their distinct, widel}' separated vertical horizons. Very re- 

 cently I met Capt. B. G. Gillett who was emploj^ed before the war 

 constructing a reservoir near Khandala and was returning to 

 Bombay. He told me he had noticed fossil shells in the sections 

 excavated and promised to look them up and collect specimens. 



H. H. GoDWiN-AusTEN, Lt.-Col. 

 Nore, 9th July, 1919. 



' I have recently examined specimens of " Valvata " minima and believe 

 them to belong- to Gyraiiliis. — N. Annandale. 



