MOLLUSCS 



Vitrea pura (Aid.) 



— radiatula (Aid.) 



— excavata (Bean). St. Leonards Forest ; 



Midhurst ; near Piplye 



— nitida (Mull.) 



— fulva (Mull.) 

 Arion ater (Linn.) 



— hortensh, Fdr. 



— circumscriptus, John. | ^^^^ g^^^^^ 



— subfuscus (Drap.) ) 

 Punctum pygmaum (Drap.) 

 Pyramidula rupestrh (Drap.) 



— rotundata (Mull.) 

 Helkella virgata (Da C.) 



— Itala (Linn.) 



— caperata (Mont.) 



— barbara (Linn.) Rare ; it was found at 



Eastbourne on a spot now built over 



— cantiana (Mont.) 



— cartuiiana (Miill.) 



Hygromia fusca (Moat.) Warrengrove and 

 Warrinson Wood, near Lewes 



— granulata (Aid.) 



— htspida (Linn.) 



— rufescens (Penn.) 

 Acanthinula aculeata (Moll.) 

 Vallonla pulchella (Mull.) 



HeUcodonta obvoluta (Mull.) Up Park ; 



Graffham ; Storington ; Dunston ; 



Singleton, etc. 

 Helkigona lapicida (Linn.) 



— arhustorum (Linn.) 

 Helix aspersa. Mull. 



— nemora/is, Linn. 



— hortemis. Mull. 

 Bul'iminus obscurus (Mull.) 

 Cochlicopa lubrica (Moll.) 

 A%eca tr'idem (Pult.) 

 Ccecilianella acicula (Miill.) 

 Pupa secale, Drap. 



— cylindracea (Da C.) 



— muscorum (Linn.) 



Sphy radium edentulum (Drap.) 

 Vertigo antivertigo (Drap.) Lewes levels ; 

 Eastbourne 



— pygfnaa (Drap.) 

 Balea perversa (Linn.) 

 Clausilia laminata (Mont.) 



— hidentata (Strom.) 



Clauiilia rolphii. Gray 

 Succinea putris (Linn.) 



— e/egans, Risso. 



b. Basommatophora 

 Carychium minimum. Mall. 

 Melampus denticulatus (Mont.) Newhaven 

 Alexia myosotii{\}x^^.) Hastings; Newhaven; 



Shoreham 

 Ancylus fluviatilis, MUll. 

 VeUetia lacustris (Linn.) 

 Limnaa auricularia (Linn.) 



— pereger (Mull.) 



— paluitrii (Mull.) 



— trimcatula (Miill.) 



— stagnalis (Linn.) 



— ghibra (Miill.) Near Mailing ; Hastings ; 



near Brighton ; Horsted Keynes 

 Planorbis corneus (Linn.) 



— albus. Mull. 



— glaber, JefF. West Sussex 



— nautileus (Linn.) 



— carinatus. Mull. 



— marginatus, Drap. 



— vortex (Linn.) 



— spirorbis, Mull. 



— contortus (Linn.) 



— fontanus (Lightf.) 



— lineatus (Walker) 

 Phyia fontinalii (Linn.) 



— hypnorum (Linn.) 



IL PROSOBRANCHIATA 



Paludestrina jenkinsi (Smith). Near Lewes 



— stagnalis (Bast.) Hastings 



Bithynia tentaculata (Linn.) The type is 

 common ; but near Pevensey Mr. P. 

 RufFord has obtained an interesting 

 variety which is prettily marked with 

 raised longitudinal brown stripes or bars 



— leachii (Shepp.) Pevensey level ; river 



Arun 

 Vivipara vivipara (Linn.) 

 Valvata piicinalis (Mull.) 



— crista ta, Mull. 

 Pomatias elegans (Mali.) 



Acicula lineata (Drap.) Fairlight Glen ; Cog- 

 hurst Wood 

 Neritina fluviatilis (Linn.) 



B. PELECYPODA 



Unio pictorum (Linn.) 



— tumidus, Retz. 

 Anodonta cygncea (Linn.) 



Spharium rivicola (Leach). Near Hastings, 

 dead shells only 



— corneum (Linn.) 



— ovale (Fer.) Near Lewes, one specimen. 



— lacustre (Mall.) 



Pisidium amnicum (MUll.) 



— pusillum (Gmel.) 



— nitidum, Jenyns. Near Lewes ; Hastings ; 



Guestling ; Chidham 



— fontinale (Drap.) In addition to the type 



the variety P. henslowianum occurs at 

 Pevensey Marsh 



— milium (Held.) Hastings 



109 



