A HISTORY OF SURREY 



Vitrea nitidula (Drap.) 



pura (Aid.) 



radiatula (Aid.) 



excavata (Bean). Copthorne Common 



(E. Saunders) 



nitida (Mull.). Barnes 



fulva (Mull.). Haslemere 

 Arion ater (Linn.) 



hortensis, Fdr. 

 Punctum pygmeeum (Drap.) 

 Pyramidula rupestris (Drap.). Mickleham 



rotundata (Moll.) 

 Helkella virgata (Da C.) 



itala (Linn.) 



caperata (Mont.) 



cantiana (Mont.) 



cartusiana (Mull.). Banstead Downs 



(Cooper) 



Hygromia granulata (Aid.). Reigate ; Limps- 

 field 



hispida (Linn.) 



rufescens (Penn.) 



Acanthinula aculeata (Mtill.) Croydon, etc. 



Valhnia pulchella (Mttll.) 



Helicodonta obvoluta (Mull). Norbury Park, 

 near Mickleham [dead specimens]. 

 One reversed example said to have 

 come from Mitcham, but more prob- 

 ably also from Mickleham 



Helicigona lapicida (Linn.) 



arbustorum (Linn.) 

 Helix aspersa, Mull. 



pomatiaj Linn. 



nemoralis, Linn. 



hortensis, Mtlll. 



Buliminus montanm (Drap.). Near Godalming 

 (H. W. Kidd) ; also in a holocene 

 deposit at Reigate 



obscurm (Mall.) 

 Cochlicopa lubrica (Mail.) 



Azeca tridens (Pult.). Between Reigate and 



Dorking 

 Calianella acicula (Mull.). Barnes Common ; 



Epsom 

 Pupa cylindracea (Da C.) 



muscorum (Linn.) 

 Sphyradium edentulum (Drap.) 

 Vertigo antivertigo (Drap.). Barnes 



substriata (Jeff.). Redhill (E. Saunders) 



pygrmea (Drap.). Near Oxtead 



pusi/la, Mull. Reigate (E. Saunders) 



Vertigo angustior, Jeff. Battersea Fields (Ste- 

 phens) 



Balea perversa (Linn.) 

 C/ausi/ia laminata (Mont.) 



bidentata (StrSm.) 



biplicata (Mont.). Putney, near the 



banks of the Thames 



rolphii, Gray. Between Reigate and 



Dorking 



Succinea putris (Linn.). In addition to the 

 type, which is common, a variety that 

 has been described as a separate species 

 under the name of 5. virescens has been 

 met with at Mitcham and Twickenham 



elegans, Risso 



b. BASOMMATOPHORA 



Carychium minimum, Mtlll. 

 Ancylus flwviatilis, Mttll. Barnes 

 Limneea auricularia (Linn.) 



pereger (Mull.) 



palustris (Mull.) 



truncatula (Mall.) 



stagnalis (Linn.) 



glabra (Mall.). Battersea (Cooper) 

 Amphipeplea glutinosa (Mull.). Barnes 

 Planorbis corneus (Linn.) 



albus, Mall. 



glaber, Jeff. 



nautileus (Linn.). Tooting ; Bookham 



Common 



carinatus, Mail. Kew 



marginatus, Drap. 



vortex (Linn.) 



spirorbis, Mttll. 



cantor tus (Linn.) 



fontanus (Lightf.). Kew 



Kneatus (Walker). Barnes Common 

 Physa fintinalis (Linn.) 



bypnorum (Linn.) 



II. PROSOBRANCHIATA 



Bithynia tentaculata (Linn.) 



leachii (Shepp.) 



Vivipara vivipara (Linn.). Guildford, etc. 

 Valvata piscinalis (Mttll.) 



cristata, Mttll. 

 Pomatias elegans (Mttll.) 



Acicula lineata (Drap.). Gatton ; Battersea 



(Cooper) 

 Neritina fluviatilis (Linn.) 



B. PELECYPODA 



Dreissensia polymorpha (Pall.) \ p TTT Sphterium male (F^r.) 



Unio pictorum_(Linn.)_ J J _ laaatrt (Mall.). Guildford 



Pisidium amnicum (Mttll.). Nutfield 



pusillum (Gmel.) 



fontinale (Drap.) 



tumidus, Retz. Basingstoke Canal 

 Anodonta cygn&a (Linn.) 



Spbierium r'micola (Leach). River Wey 



corneum (Linn.) 



milium (Held.) 



72 



