260 
MARINE MOLLUSCS. 
Amphidesma convexum.-Rare. Falmouth, 
(J. C. B.) 
Donax complanata.—(Turton and Kingston.) 
Donax trunculus.—Common. 
Donax denticulata.—Very rare. Bigbury bay, 
(J. C. B.) 
Donax rubra.-On corallines. Rather rare. 
Boveysand, (J. C. B.) 
* Tellina lineata.—Teignmouth. (Turton.) 
Tellina fabula.—Common. 
Tellina squalida.—(Turton and Kingston.) 
Tellina donacina.—Not uncommon. 
Tellina tenuis.—Common. 
Tellina crassa.—Not uncommon. 
* Psammobia costulata.—Torbay. (Turton.) 
Psammobia solidula.—Not uncommon. 
* Psammobia strigillatus_Torbay and Cornwall. 
' * Psammobia scopula.—Exmouth. (Turton.) 
Psammobia ferroensis.—Common in Torbay. 
Psammobia florida } rr . j * 
i- . 1 lurton and Kingston 
Psammobia rotundata j & 
Astarte Danmoniae.—Not common. 
Astarte Scotica.—Not uncommon. 
Lucina flexuosa.—Obtained by Mr. T. Colley. 
* Lucina pisiformis.—Falmouth and Teignmouth. 
Lucina radula.—(Turton and Kingston.) 
* Lucina arcuata.—Falmouth and Teignmouth. 
(Turton and Montagu.) 
Myrtea spinifera 
Cyprina triangularis 
Turton and Kingston. 
Cyprina islandica.—In the mud of inlets. Rare. 
Cyprina minima.—(Turton and Kingston.) 
Cytherea chione_Common; frequently polished 
for ornaments. “ Queens .” 
Cytherea ovata.—Not uncommon in deep water 
attached to stones and corallines. 
Cytherea exoleta.—Sandy bays. 
Venus verrucosa.—Common in estuaries. 
