BY PEOFESSOR F. W. HUTTON. 67 



true Littoriiiidce) but may perhaps belong to Adeorhis, the oper- 

 culum of which does not seem to be known. I should like to 

 examine the other species of Fossarina. 



List of the Peeshwateb Shells of New Zea^lxad. 

 By Peofessoe E. W. Huttoj^^, Hox. Mem. Eoy. Soc, Tas. 



In my Manual of the New Zealand Mollusca, (1880) I have 

 collected together the names and descriptions of all the fresh 

 water shells said to occur in New Zealand; I have made no 

 attempt in it either to revise the nomenclature, or to eliminate 

 species probably put down to New Zealand in error ; but it 

 seems to me that I might now attempt to give, what I believe to 

 be a true list of our fresh-water shells as at present known, as a 

 supplement to the Check List of Australian Presh- water Shells 

 by Messrs Tate and Brazier, published in Vol. VL, p. 552 of 

 our Proceedings. 



Aplexa antipoda, Sowerhi/, in E-eeve's Conch. Icon. Physa, fig. 37. 



Aplexa tabulata, Gould, Pro. Bost. Soc. Nat. Hist. 1818, p. 214. 



Aplexa variabilis, Gh'a^, in Dieffenbach's Travels in N.Z., vol. ii., 

 p. 248, (l84<S).=P.ffibhosa, Sow., fig. 27, (not of Gould) 

 =P. guyonensis, T.-Woods, P.L.S. of N.S.W., iii., p. 

 138,=P. lioclisteUeri, Dunker. Described (?) 



Aplexa moesta, Adams, P.Z.S., 1861, p. 144. Conch. Icon. f. 32. 



Planorbis corinna. Gray, P.Z.S., 1849, p. 167. 



Latia neritoides. Gray, P.Z.S., 1849, p. 168=Z. lateralis, Gould. 



Melanopsis trifasciata, Gray, in DiefPenbach's Travels in N.Z., 

 ii., p. 263 (1843;. Yoy. Ereb. and Terror, Moll. pi. 1, 

 f. 18-22 =J/. Zealandica, Gould, (1848), P.B.S., N.H., 

 p. 22o.^=3I. strangei, Eeeve, Conch. Icon. f. 3.=Jf. 

 ovata, Dunker, Mai. Blatt. 1861, vii., p. 150. 



