394 Transactions. 



Rissoa inscvlpta, Murdoch. 

 foveauxiana, Suter. 

 subfusca, Hutton. 

 subfusca micronema, Suter. 

 neozelanica, Suter. 

 emarginata, Hutton. 

 I have only met with dead shells of these species. 



Rissoina rugidosa, Hutton. 

 agrestis, Webster. 



Eatoniella olivacea, Hutton. 



olivacea annulata, Hutton. 



limbata, Hutton. 

 I have obtained live shells of all of these from seaweed- 

 washings. 



Fam. Hydrobiid^:. 



Potamopyrgus antipodum, Gray. 

 spelceus pupoides, Hutton. 

 Living under stones in brackish water ; dead specimens 

 rarely found in shell-sand. 



Fam. CerithiiDjE. 



Cerithiopsis sarissa, Murdoch. 



Live shells under dirty stones ; also met with in seaweed- 

 washings. 



Potamides subcarinatus, Sowerby. 



Common in shallow pools at high- water mark. 



Potamides bicarinatus, Gray. 



In Canterbury Museum, from Lyttelton. 



Fam. Cmcivm. 



Ccecum digitulum, Hedley. 



Common under stones at high- water mark. 



Fam. Turritellidje. 



Turritella rosea, Quoy ;iud Gaimard. 

 kanieriensis, Harris. 

 Dead shells common on sandy bays ; dredged alive in 

 shallow water. 



Fam. Struthiolatuid.e. 



Struthiolaria papulosa, Martyu. 



Dead shells only, on sandy beaches. 



