THE MOLLUSCA OF KENT, SURREY AND MIDDLESEX. 95 
[The following have been taken in Sussex: — 7’. bipinnata, 
T. malleolus, T. excavata, and T’. cucullata. | 
Cyrena (Corbicula) fluminalis.—Fossil at Crayford with Pisi- 
dium amnicum, Spherium corneum, Bythinia tentaculata, Valvata 
prscinalis, Planorbis complanatus, Limnea peregra, L. truncatula, 
&e. (T. C.). The Corbicula has now died out in Britain, but the 
others still survive. I have a recent specimen of C. consobrina 
from Ismailia, given to me by Mr. W. Bendall, which does not 
appear to be specifically distinct from the Crayford fossil. 
Spherium cornewn.— East Kent, Sarre, Herne Bay, &c. (T.C.); 
West Kent, Mottingham, &c. (T.C.); Surrey, Guildford, Barnes, 
&e.; Middlesex, Brentford, Regent’s Park, &c. {Sussex, Pevensey 
Marsh; Berks, Reading (W. Holland); Bucks (Sclater, fide Roe- 
buck); Herts, Watford (Selby), Ware (Jeffreys). | 
Var. flavescens.— Middlesex, Brentford; Surrey, Croydon Nat. 
Hist. Club district * (M‘Kean); (Herts, Sandridge (W. Griffith).] 
Var. nucleus.—Middlesex (Rich); Surrey, East Kent (Faver- 
sham (J. W. Taylor); [Herts, Watford (Rich, fide Rimmer).] 
Var. scaldiana.— Middlesex ; [Herts]. 
Var. pisidiodes.—Middlesex. 
S. rwicola.—Middlesex, River Brent, &c.; Surrey, River Wey, 
near Newark Abbey, near Weybridge, &c. (M‘Kean); Sussex, 
dead shells near Hastings (Jenner). 
S. ovale.—Middlesex, Paddington (Gray); Surrey (W. D. Roe- 
buck). 
S. lacustre.— East Kent, Minster (8. C.C.); West Kent, 
Chislehurst ; Surrey, Guildford; Middlesex, pond near Wilsdon ; 
(Sussex, Midhurst (T. C.), near Eastbourne and Brighton (Jen- 
ner); Bucks (Roebuck) ; Herts, Ware (J. Gwyn Jeffreys).] 
[Var. brochoniana.—West Sussex (Jeffrey).] 
Var. ryckholtii—Tunbridge (A. H. Cooke). 
Pisidium amnicum.— East Kent, rejectamenta of River Stour 
at Richborough (S. C. C.); West Kent, River Cray (H. Leslie) ; 
Surrey, Nutfield (EH. Saunders) ; Middlesex, River Brent ; [ Sussex, 
Lewes (Jenner) ; Hants, Preston Candover (P. Fitzgerald) ; Berks, 
Reading (W. Holland); Bucks (W. D. Roebuck); Herts, River 
Lea (Griffith).] 
P. fontinale-—Kast Kent, Ebbsfleet; West Kent, St. Mary 
* This includes the whole of Surrey and the portion of Kent west of the 
River Darenth. 
