Ieedale. — Marine Mollusca of Banks Peninsula. 393 



Cattiostoma punctulatum, Martyn. 



In crevices of rocks j ust above low- water mark. 



Ethalia zelandica, Hornbron and Jacquinot. 

 Dead shells on sandy beaches. 



Fam. Liotiid^. 



Liotia polypleura, Hedley. 



Not uncommon in seaweed-washings ; live shells. 



Fam. Cyclostrematida;. 



Cydostrema corulum, Hutton. 

 lissa, Suter. 



Fam. Turbinid^;. 



Turbo smaragdus, Martyn. 



smaragdus tricostatus, Hutton. 

 Common on rocky shores, between tide-marks. 



Turbo granosus, Martyn. 



One specimen in Canterbury Museum, from Lyttelton. 



Astralium sulcatum, Martyn. 



Not common alive on rocks ; dead shells on beaches adjacent. 



Astralium sulcatum davisii, Stowe. 



Have only met with two dead shells. 



Astralium heliotr opium, Martyn. 



One very young specimen from shell-sand. 



Order PECTINIBEANCHIA. 



Fam. Litorinid^e. 



Litorina mauritiana, Lamarck. 



cincta, Quoy and Gaimard. 

 Common on rocks above low tide and also above high water. 



Risellopsis varia, Hutton. 



varia carinata, Kesteven. 

 Common ; associated with Litorina, spp. 



Fam. Rissoid^e. 

 Rissoa hamiltoni, Suter. 



incidata, Frauenfeld. 

 fumata, Suter. 

 zoster ophila, Webster. 

 zosterophila minor, Suter. 

 cheilostoma, Ten. -Woods. 

 cheilostoma lyalliana, Suter. 

 microstriata, Murdoch. 

 All these were found alive in seaweed-washings. 



