Sutek. — On New Zealand Mollusca. 



Potamopyrgus corolla, Gould, subsp. salleana, Fischer. 

 Isidora lirata, Tenison- Woods. 



Lake Taupo. 

 Diplodon menziesi, Gray. 

 Sphseriuni novae-zelandife, Deshayes. 

 Corneocyclas hodgkini, Suter. 

 Potamopyrgus corolla, Gould. 



,, „ „ subsp. salleana, Fischer. 



Amphipeplea arguta, Hutton. 

 Isidora lirata, Tenison- Woods. 



Lake Waikaremoana. 

 Diplodon menziesi, Gray. 

 Sphserium novae-zelandise, Deshayes. 

 Corneocyclas hodgkini, Suter. 



Potamopyrgus corolla, Gould, subsp. salleana, Fischer. 

 Isidora lirata, Tenison- Woods. 



Lake Wakatipu. 

 Diplodon lessoni, Kiister. 

 Corneocyclas novozeelandica, Prime. 

 Potamopyrgus badia, Gould. 

 Amphipeplea arguta, Hutton. 



Lake Manapouri. 



Diplodon menziesi, Gray, subsp. lucasi, Suter. 

 Corneocyclas novozeelandica, Prime. 

 Potamopyrgus corolla, Gould, subsp. salleana, Fischer. 

 „ badia, Gould. 



255 



Bathymetrical Distribution of the Mollusca. 



