152 PA'NE : MARINE MOLLUSCA OF TEIGNMOUTH. 



R. parva var. interrupta Ad. With the type ; common. 

 R. parva var. semicostata. Intermediate between the type 



and var. interrupta. It is half ribbed and half smooth. 



A few with the type. 

 R. inconspicua Aid. iVlive from trawled weeds, and dead 



from drift; scarce. 

 R. inconspicua var. variegata Mohr. From drift, but has 



also occurred with trawled type specimens. 

 R. albella var. sarsii Lov. From drift. 

 R. mem bran acea Ad. A scarce species on our rocks. 



Trawled, and dead examples in drift. 

 R. violacea Desm. Trawled from weeds, and a few examples 



from amongst weeds on the rocks, with commoner species. 

 R. COStulata Aid. Dredged and trawled and in drift, dead 



specimens from drift. 

 R. striata Ad. Under stones at low water mark, on spring 



tides. 

 R. proxima Aid. Live, fresh, and dead specimens dredged 



locally in our bay, with its congener, R. vitrea, in shelly 



mud. 

 R. vitrea Mont. Fresh and dead examples dredged locally 



in the bay. A small quantity of material from hard shelly 



ground brought up on the anchor of a small trawler yielded 



eight dead but good examples. One specimen from beach 



drift. 

 R. fulgida Ad. One dead specimen from drift. 

 R. soluta Phil. Dead specimens amongst drift. 

 R. semistriata Mont. From under stones at low water 



mark on spring tides ; also trawled alive with common 



Rissoie. 

 R. cingillus Mont. Has occurred fairly plentifully amongst 



weeds on our red sandstone shores at low tides. 

 Hydrobia ulvas Penn. From under stones on the mud 



banks of the River Teign. 

 Barleeia rubra Mont. One live specimen in weeds. 



J.C. , vii. , Apr. 1893. 



