l/S JOURXAL OF CONCHOLOGV. VOL. 10, NO. 6, AI'RIL, I9O2. 



V. rufescens(?): II— Aldfold (E.W.S.). 



-■ V. excavata Jeffr. (K.McK,). 



monst decoUatum Jeffr. (K.McIC); 2— Barnes (T. D. A. 

 Cockerell, S.G., 1885, p. 76); 11— Surrey and Sussex Canal (E.W.S.). 



B. leachii (Shepp.). 9— Croydon (K.McK.). 



Valvata piscinalis (Miill.). 2 — Barnes Common (C.H.D.); 

 3 — Waddon (K.McK.); 9 — Epsom Common (E.S.); ti — Aldfold, 

 Surrey and Sussex Canal (E.W.S.). 



V. cristata Miill. i — Molesey (E.S.); 2— Barnes (C.H.D.); 

 3— Waddon (K.McK.); II— Aldfold (E.W.S.). 



Unio tumidus Phil. 2 — Twickenham; 4— Basingstoke Canal 

 (K.McK.). 



V. radiata Colb. 2 — Twickenham (Garner). 



U. pictorum (L.)- 2— Richmond, R. Thames (C.H.D.); 6— 

 Guildford, R. Wey (K.McK.); ro-S. Nutfield, R. Soften (R.A.B.). 



Anodonta cygnea (L.). i — Fetcham Common (K.McK.); 

 Wisley (E.S.); 2— Richmond Park (E.S.); 6— Godalming (E.S.); 

 Frensham Pond; 8 — Haslemere (C.P.); 10 — Reigate, Gatton Park 

 (R.A.B.); S. Nutfield, R. Soften (R.A.B.); Limpsfield (S.G., 1887, 

 p. 139); II— Aldfold, R. Arun (E.W.S.). 



V. stagnalis Sow. and v. incrassata Shepp. (K.McK.). 



A. anatina (L.). 2 — Twickenham (The Garner); Richmond 

 Park (E.S.); 6 — Frensham and Hammer Ponds (E.W.S.). 



V. compressa. 2 — Twickenham (Garner); 10 — N. Nutfield 

 (K.McK.). 



Sphaerium corneum (L.). i— Bookham (E.S.); 2— Richmond 

 (C.H.D.); Barnes (E.S.); 4— Woking (E.S.) ; 9— Epsom (E.S.). 



S. rivicola (Leach), i — Newark Abbey, Weybridge (K.McK.); 

 II — Near Cranleigh, Surrey and Sussex Canal (K.McK.). 



S. pallidium Gray {—S. ovale Jeffr.). 2— Richmond (C.H.D.). 



S. lacustre (Miill.). 2 —Wandsworth Common (K.McK.); 

 Richmond Park (E.S.); 8— Haslemere (C.P.); Shottermill (E.W.S.); 

 II— Aldfold (E.W.S.). 



Pisidium amnicum (Miill.). 8— Haslemere (C.P.). 



P. fontinale (Drap.). 2— Richmond (C.H.D.); Sheen (E.S.); 

 8— Haslemere, Shottermill (C.P.). 



P. pusillum (Gmelin). 2 — Barnes Common (C.H.D.). 

 V. obtusalis (Lam.). 11 — Charlwood (K.McK.). 



P. nitidum Jen. 2— Richmond (C.H.D.); Sheen (E.S.) ; 11— 

 Aldfold, Surrey and Sussex Canal (E.W.S.). 



P. milium Held.(=/'. roseum Jeffr.). 2— Richmond Park (E.S. ). 



Dreissensia polymorpha (Pall.). i— Junction of the Thames 

 and Wey (K.McK.); 7— Albury, Silent Pool (S.C^., 1883, p. 222). 



