138 PROVISIONAL AID TO THE STUDY OF TASMANIAN MOLLUSCA. 



291 Hydrobia Gunni ? Frauenfteld. Tate and Brazier, Proc. 



Linn. Soc, N.S.W., 1881 



292 Hydrobia Tasmanica ? Martins. Petterd, Proc. Roy. Soc. 



Tas., 1888 



293 Hydrobia, turbinata. Petterd 



294 Bithynella (Potomapyrgus ?) nigra. Quoy and Gaim ... 

 ii ? nitida. B. M. Johnston. 



(Fossil) 

 ii? Dulvertonensis. T. -Woods... 

 Dunrobinensis. n 



Dyeriana. Petterd 

 Simsoniana. Brazier 

 Woodsii. Petterd... 

 Smithu. n 

 Brownii. n 

 marginata 



295 



296 

 297 

 298 

 299 

 300 

 301 

 302 

 303 



304 Amnicola? (Brazieria) Tasmanica. T. - Woods (Amnicola) 



305 (Beddomeia) Diemense. Frauenfield. Pre- 



viously referred to Amnicola 



306 |i Launcestonensis. R. M. Johnston. 



Referred to Petterd's new Sub- 

 genus Beddomeia 



307 ■ „ Bellii. Petterd 



308 M Loddera). m 



309 „ Hulli. „ ... 



310 • m Tasmanica. T. -Woods. Valvata, 



T.-Woods 



311 Pomatiopsis striatula. Menke 



312 Badgerensis. R. M. Johnston ... 



57, 58 



57, 58 



57, 58 

 57,58 



58 

 57, 58 

 57, 58 

 57, 58 

 57,58 

 57,58 

 57, 58 

 57, 58 

 57, 5a 

 57, 58 



57, 58 



57 



58 



57, 



58 



57, 



58 



57, 



58 



57, 



58 



57, 



58 



57, 



58 



(xxxvii.) Family Assiminiidye. (sp 1.) 

 313 Assiminea bicincta. Petterd 



(xxxviii.) Family Valvatimi. (sp. 1.) 

 313a Valvata Tasmania}. T.-Woods. Beddomeia Tasmanica 



57 



(xxxix.) Family Truncatellim. (sp. 4.) 



314 Truncatella scalarina. Cox. Petterd's Monograph ... 27 



315 Tasmanica. T.- Woods. Petterd's Monograph 27 



316 marginata. Kuster. n ,, 27 



317 micra. T.-Woods. „ „ 27 



(xl.) Family Neritim. (sp. 1.) 

 318 Nerita atrata. Quoy 



27 



