258 TREGELLES : MARINE MOLLUSCA OF CORNWALL. 
Var. quadrata Jeff—Falmouth (W.H.); Hayle (Miss H.). 
T. virgineus L.—Generally distributed. 
Var. sarniensis Turt.—St. Austell and Falmouth (J.C.) ; 
Scilly (R.W.J.S.).. 
T.pullastra Mont.—Plymouth Sound, Par, Falmouth, Helford, 
Mount’s Bay, St. Minver, Scilly. 
Var. perforans Mont.—Plymouth Sound (J.M.B. Ads : Eee 
(R.V.T.); Falmouth and Penzance (C.B.); Helford (W. H.). 
T. decussatus L.—Generally distributed. 
Venerupis irus L.—Plymouth (J.M.B.A.) ; Falmouth 
(W.P.C.); Mousehole (Baily) ; Porthcurnow (Miss T.) ; 
Land’s End (E.D.M.) ; Hayle and Harlyn Bay (R.V.T.). 
SuB-ORDER CARD/ACEA. 
Cardium aculeatum L.—Plymouth Sound, Pentewan, 
Falmouth, Helford, Mount’s Bay, Hayle. 
C. echinatum L.—Generally distributed. 
C. tuberculatum L.—Generally distributed. 
C. papillosum Poli.—Falmouth Harbour, a fresh valve 
(J.K.M.); Helford (W.R.);  Mount’s, Bay (Gaba 
St. Ives (Dodd). 
C. exiguum Gm.—Par, Falmouth, Mount’s Bay, Hayle. 
C. fasciatum Mont.—Falmouth, Mount’s Bay, Porthcurnow 
(characteristic), Whitsand Bay, Hayle, Scilly. 
C. nodosum Turt.—Fowey and Falmouth (Alder) ; Mount’s 
Bay (G.F.T.); Wolf Rock (Miss Carne); Scilly (R.W.J.S.). 
Var. rosea Lmk.—Falmouth (W.H.). 
C. edule L.—Generally distributed. 
Var. crenulata Lmk.—Mount’s Bay (Miss H.); “a form 
approaching this variety ” occurs at Scilly (R.W.J.S.). 
C. minimum Phil.—Mr. Burkill dredged this shell at Scilly, 
and McAndrew obtained it 50 miles N.N.W. of Land’s End, 
in 50 fathoms of water. 
Leevicardium norvegicum Speng.— Generally distributed. 
Var. gibba Jeff.—Hayle (Miss T.). 
J.C., viii., Oct., 1896. 
