This page needs to be proofread.

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