84 REMARKS ON SOME FLTJVIATILE SHELLS OF N. S. W., 



tion, the specimens having been collected by Mr. E. G-. Yickery, 

 District Surveyor of the Mining Department ; below I append 

 list of species. 



1. Melania oncoides. 



Melania oncoides, Tenison-Woods, Proc. Linn. Soc, N. S. W., 

 Vol. III., p. 5, 1878. 



Mah. Starts Depot, Glen River, County Evelyn, also Darling 

 River near Wilcannia (U. G. Vichery.) Creeks near Bourke, 

 Darling River (James Ramsay.) 



Owing to the very dried up state of the rivers and creeks for 

 some monthz past, many of the specimens have become quite 

 denuded of the periostracum ; the specimens that have lain in 

 the baked mud and not exposed to the sun's rays retain the 

 periostracum ; it is evidently a very common species in the wet 

 season. The type specimens in the Australian Museum are dead. 



2. PaLUDINA subline ATA. 



Paludina suUineata, Conrad, Proc. Acad. Nat. Sc, Philad., p. 

 11, 1850, American Journ. Conch., Yol. II., p. 79, pi. 1, fig. 8, 

 1866. 



Hah. Darling River, near Wilcannia, Sturt's Depot, Glen 

 River, County Evelyn {E. G. Viclcery.) . Darling River, Australia 

 (Conrad.) 



This species is easily determined by its very fine revolving lines 

 being closely arranged, but so minute as to be invisible without the 

 aid of a lens, very large specimens scarcely show it even with the 

 lens. 



Specimens from Sturt's Depot, Glen River, measure in Alt. 

 28 ; breadth, greatest, 22 ; least 20 mill. ; small specimens from 

 same place, Alt. 10 ; breadth, greatest, 9 ; least 7 mill. Darling 

 River specimens, largest Alt. 23^; breadth, greatest, 19; least 

 15 mill ; next size specimens, Alt. 16; dreadth, greatest 15; 



