224 TREGELLES: MARINE MOLLUSCA OF CORNWALL. 
SuB-OrDER (?) PLEROPODA. 
Limacina retroversa Flem. | .Sfria/is 7. |.—Falmouth Har- 
bour (W.H.) ; Mount’s Bay (Penz. List) ; Scilly (C.B.). 
Cavolinia trispinosa Lesr.—Is marked in a printed list as 
Cornish, in the hand-writing of the late Mr. Williams 
Hockin. (?) 
Clione limacina Phipps.—Pelseneer (‘ Challenger’ Report) 
says, “ There is in the collection of the Muséum d’Histoire 
Naturelle of Paris a specimen from Falmouth presented by 
Leach ” (Norman). 
OrpDER PULMONATA. 
SuB-ORDER BASOMILATOPHORA, 
Alexia denticulata Mont. [Jelampus myosotis Drap.].— 
Truro (King) ; Falmouth (W.P.C.) ; Penzance, Whitsand 
Bay, and Porthcurnow (Hennell) ; Scilly (R.W.J.S.). 
Var. ringens Turt.—Porthcurnow (W.E.B.); Scilly (Jordan). 
Leuconia bidentata Mont. [JAZelampus 6.).—Falmouth 
(W.P.C.) ; Helford (W.R.) ; Mousehole (R.N.D.) ; Land’s 
End (King); Hayle Towans (Hennell) ; Scilly (R.W.J.S.). 
Otina otis Turt—Plymouth (J.M.B.A.); Lizard and Tin- 
tagel (Cooke) ; Mousehole (R.N.D.); Land’s End (W.H.); 
Scilly (R.W.J.S.). 
Var. candida Jeff—Sennen (C.B.). 
Var. alba Cooke.—Newquay (Cooke). 
SuB OrDER STYLOMIMATOPHORA. 
Oncidium celticum Cuv.—Lantivet Bay, in crevices of the 
rocks, a little above high-water mark, apparently feeding on 
Lichina pygmea (Laughrin, J.C.); Whitsand Bay E. 
(Spence Bate). 
Crass SCAPHOPODA. 
Dentalium vulgare DaC. [D. tarentinum Lik. |.—Attached 
to byssus of Pinna, rare (J.C.); Plymouth (iol sets) 2 
Falmouth (Montagu); Mount’s Bay (G.F.T.); Porthcurnow 
(R.N.D.). 
J.C., viil., July 1896 
