Iredalb. — Marina Mollusca of Banks Peninsula. 401 



Tellina lactea, Q. and G. 



Dead shells not uncommon ; lives on a muddy bottom ; 

 live specimens common. 



Tellina glabrella, Deshayes. 



Dredged valves ; muddy bottom. 



Tellina disculus, Deshayes. 

 Dead shells washed up. 



Tellina spenceri, Suter. 



Dead shells met with after storms ; sandy beaches. 



Tellina huttoni, E. A. Smith. 



Dredged in shallow water ; muddy bottom. 



Leftomya lintea, Hutton. 



Dead shells dredged in shallow water ; muddy bottom. 



Macoma suter i, E. A. Smith. 



Dredged with T. huttoni, E. A. Smith. 



Fam. Mesodesmatid^e. 



Mesodesma australis, Gmelin. 

 Atactodea subtriangulata, Gray 



Abundant ; the former on mud, the latter sand ; our com- 

 monest bivalves. 



Fam. Mactrid^e. 

 Mactra discors, Gray. 



cequilatera, Deshayes. 

 Common ; lives below low- water mark on sandy beaches. 



Mactra or dinar ia, E. A. Smith. 



Dredged with Tellina huttoni, E. A. Smith. 



Standella ovata, Gray. 



Dead shells abundant on muddy bottom ; have not found 

 live shells. 



Resania lanceolata, Gray. 



Zenatia acinaces, Quoy and Gaimard. 



Lives below low-water mark on sandy beaches ; dead shells 

 common. 



Fam. Venertd^:. 

 Dosinia subrosea, Gray. 

 australis, Gray. 

 Lives with the two preceding. 



Dosinia grayi, Zittel. 



Have only met with single valves ; very rare. 



Chione ob'onga, Hanley. 



Dead shells rarely met with ; one live specimen in a rock- 

 pool. 



