BY J. BEAZIER, C.M.Z.S. 85 



least 12 mill. ; smallest specimens, Alt. 14 ; breadth, greatest 12 ; 

 least 10 mill. 



3. Physa Newcombi. 



Physa newcomhi, Adams & Angas, Proc. Zool. Soc, p. 416, 

 1863; Eeeve, Conch.. Icon., pi. iii., sp. 21. 



Sal. Start's Depot, Glen Eiver, County of Evelyn, New 

 South Wales {E. G. Vichery). Mount Margaret, Central 

 Australia {F. G. Waterhouse). 



The type specimens were obtained during Stuart's Exploration 

 of Australia in 1861—1862. 



4. Unio NoviE Holland:^. ? 



Unio Novm Hollandi(B, Gray, Proc. Zool. Soc. p. 57, 1834. 

 Sah. Darling Eiver, New South Wales {E. G. Vicherij). 



What I have before me for identification is three-quarters of 

 a valve of a very thick species bleached perfectly white, scaling 

 off in flakes with the point of a knife and showing nothing but a 

 pearly nacre ; until a few good examples turn up my identification 

 is doubtful. 



5. Alasmodon Stuartii. 



Unio {Alasmodon) stuarti, Adams and Angas, Proc. Zool. Soc, 

 p. 417, 1863. Eeeve, Conch. Icon. pi. 54, sp. 279, 1866. Anodon 

 Sttiarti, Sowbery in Eeeve's Conch. Icon., pi. 34, sp. 136, 1870. 



Hah. Wittabrinna Creek, Sturt No. 7 Eiver, County Tongo- 

 woke, Albert District, New South Wales {K G, Vichery). 

 Lagoons, Mount Margaret, Central Australia {F. G. TFaterhotise) . 



6. CORBICULA NePEANENSIS, 



Cyclas Ne^eanensiSf Lesson, Yoy. Coq., Vol, 2, p. 428, pL 13, 

 fig. 14, 1830. 



