362 KEW : SHELLS OF THE LINCOLNSHIRE COAST. 



PATELLID^. 

 Patella vulgata L. Not common ; much worn. 

 Var. intermedia Knapp. Mablethorpe ; dead shell (H.W.K., 

 Naturalist, 1886, p. 172). 

 Helcion pellucidum (L.). Occasionally (B. S. Dodd). 



Var. lavis (Penn.). Occasionally (B. S. Dodd). 

 Tectura virginea (Mull.). Occasionally (B. S. Dodd). 



CAPULID/E. 



Capulus hungaricus (L.). Occasionally found on the Grimsby 

 shore ; in good condition (A. Smith). Specimens not seen. 



TROCHID^E. 

 Trochus magus L. Occasionally (B. S. Dodd). 

 Trochus tumidus Mont. Occasionally (B. S. Dodd). 

 Trochus cinerarius L. Plentiful. Living shells taken near 



high-water mark at Cleethorpes (H.W. K.). 

 Trochus umbilicatus (Mont.). Occasionally (B. S. Dodd). 

 Trochus zizyphinus L. Not very common ; often worn. The 



description of a shell which Lister records for Lincolnshire in 



his ' Historian Animalium Anglia?,' seems to correspond, as 



Mr. Somerville thinks, with this species. 



TURBINID/E. 



Phasianella pullus (L.). Occasionally (B. S. Dodd). 



LITTORINID/E. 

 Lacuna crassior (Mont.). Common. 



Lacuna divaricata (Fabr.). Moderately common (B. S. Dodd). 

 Lacuna puteolus (Turt.). Not common (B. S. Dodd). 

 Littorina obtusata (L.). Fairly common. 

 Littorina rudis Maton. Common. Lives in great plenty with 



Hydrobia tilvce in the muddy pools south of Saltfleet Haven ; 



shells taken there were referred to the vars. tenebrosa (Mont.) 



and similis Jeff. (H.W. K., Naturalist, 1886, p. 251). 

 Littorina littorea (L). Very common on many of the mud-fiats. 



Most of the specimens taken by me at Tetney were referred to 



var. paiiperciria Jeff. (Naturalist, 1886, p. 347). 

 Rissoa COStata (Ad.). Moderately common (B. S. Dodd). 

 Rissoa parva (DaC). Common (B. S. Dodd). 

 Var. interrupta Ad. Common (B. S. Dodd). 



Naturalist, 



