WILLIAMS: LIST OF WORCESTERSHIRE AIOLLUSCA. 1 13 



1(234)5, 123(45); Mrs. Clewer's garden in Jenny Hole. 

 i(23)(45)> (123)45^ 12345, (1234)5 ; Mr. Pretty's garden at 

 Wildon. 12345, (i23)(45), (12)345, (123)45 ; Dunley. 

 H. rufescens Penn. — Lincomb Bay. 

 H. rufescens var. alba Moq. — Lincomb Bay. 

 H. sericea Miill. — Lincomb Bay. 

 H. rotundata Miill. — Lincomb Bay. 

 Bulimus obscurus Miill. — Lincomb Bay. 

 Clausula rugosa Drap. — Charlton; Lincomb Bay. 

 C. laminata Mont. — Lincomb Bay. 

 Cochlicopa lubrica Miill. — Lincomb Bay. . 

 Sphserium corneum Linn. — Hillage Pool; Stinton Pool at 

 Crossway Green ; Wildon Pool ; Staffordshire and Wor- 

 cestershire canal. 

 S. corneum var. flavescens Macgill. — Wildon Pool. 

 S. corneum var. compressa Gra)'. — Hillage Pool. 

 S. ovale Fe'r. — Pool in Shrawley Wood (one dead specimen 



only). 

 S. iacustre Miill. — "Rush Pool" on Hartlebury Common, 



in great quantity. 

 Pisidium amnicum Miill. — Staffordshire and Worcestershire 



canal. 

 Unio tumidus Phil. — Hillage Pool. 

 Dreissena polymorpha Pall. — Severn Basins ; Staffordshire 



and Worcestershire canal ; Wildon Pool, very plentiful. 

 Paludina vivipara Linn. — Staffordshire and Worcestershire 



canal. 

 P. vivipara var. unicolor Jeff. — Staffordshire and Wor- 

 cestershire canal. 

 Bythinia tentaculata Linn. — Hillage Pool; Staffordshire 



and Worcestershire canal. 

 B. tentaculata var. albida Rimmer. — Hillage Pool. 

 B. tentaculata var. ventricosa Menke. — Hillage Pool. 

 Planorbis lineatus Walk.— Stinton Pool at Crossway Green. 

 P. albus Miill.— Hillage Pool. 



