A HISTORY OF WORCESTERSHIRE 



Helicigona lapicida (Linn.) 



— arbustorum (Linn.) 

 Helix aspersa, Mali. 



— nemoralis, Linn. 



— hortensis, MqII. 

 Buliminus obscurus (Mull.) 

 CochUcopa lubrica (Miill.) 



Azeca tridens (Pult.). Near Worcester ; Mal- 

 vern district; Acock's Green; Dud- 

 ley 



CacUianelk acicula (Mull.) 



Pupa secale, Drap. Malvern 



— cylindracea (Da C.) 



— muscorum (Linn.) 



Sphyradium edentulum (Drap.). Malvern ; 



Acock's Green 

 Vertigo antivertigo (Drap.). Malvern district 



— pygmaa (Drap.). Malvern district ; Selly 



Oak 

 Balea perversa (Linn.). Malvern district 

 Clausilia laminata (Mont.) 



— bidentata (Strom.) 

 Succinea putris (Linn.) 



— ekgam, Risso. Stourport ; Acock's Green 



b. Basommatophora 

 Carychium minimum, Mull. Malvern ; near 



Worcester 

 Ancylus Jiuviatilis, Mull. 

 VeUetia lacustris (Linn.) 

 Limncea auricularia (Linn.) 



— pereger (Mali.) 



Limnaa palustris (MUll.) 



— truncatula (MUll.) 



— stagnalis ^Linn.) 



— glabra (Mall.). Hartlebury Common 

 Planorhis corneus (Linn.) 



— albm, Mull. 



— glaher, Jeff. Malvern. 



— nautileus (Linn.) 



— carinatus, Mull. 



— marginatus, Drap. 



— vortex (Linn.) 



— spirorbis, Mall. 



— contortus (Linn.) 



— fontanus (Lightf.) 



— Uneatus (Walker). Stinton Pool, Cross- 



way Green ; Malvern 

 Physa fontinalis (Linn.) 



— hypnorum (Linn.) 



IL PROSOBRANCHIATA 



Bitbynia tentaculata (Linn.) 



— leachii (Shepp.). Malvern 

 Vivipara vivipara (Linn.) 



— contecta (Millett). River Severn ; Wor- 



cester and Birmingham Canal 

 Valvata piscinalis (MulL). Malvern ; River 

 Severn 



— cristata. Mull. Near Worcester 

 Pomatias elegam (Mull.). Malvern ; Bewdley 

 Neritina fuviatilis (Linn.). Malvern ; River 



Severn 



B. PELECYPODA 



Dreissensia polymorpha (Pall.). River Severn ; 

 Worcester and Birmingham Canal 



Vnio pictorum (Linn.). River Teme (very 

 abundant at Powick) ; near Worcester ; 

 River Avon ; Worcester and Birming- 

 ham Canal 



— timidus, Retz. 

 Anodonta cygnaa (Linn.) 

 Spharium rivicola (Leach). Malvern 



— corneum (Linn.) 



Spharium ovale (F6r.) 



— lacmtre (MuU.) 

 Pisidium amnicum (Mall.) 



— pusillum (Gmel.). Malvern ; near Wor- 



cester 



— nitidum, Jenyns 



— fontinale (Drap.). Near Worcester ; Mose- 



ley. [The variety Hemlowianum has 

 been found at Hall Green and near 

 Worcester.] 



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