MARINE MOLLUSCS. 
259 
Cardium medium.—Torquay. (Turton.) 
Cardium laevigatum.—Sandy bays ; not uncom¬ 
mon. Performs considerable leaps of many inches 
at a time by means of its very long foot. 
Cardium echinatum 1 
? Cardium spinosum > Turton and Kingston. 
Cardium muricatum j 
Corbula striata.—Not uncommon. 
Mactra solida.—Common in rather deep water. 
Mactra subtruncta.—Goodrington sands, Torbay, 
common. 
* Mactra deaurata.—Exmouth. (Turton.) 
Mactra dealbata.—(Turton and Kingston.) 
Mactra truncata.—Plymouth. Deep water. 
Mactra stultorum.—Common in sandy bays. 
* Mactra cinerea.—Paignton, and Weymouth in 
Dorset. 
* Mactra glauca.—Shores of Cornwall. Devon, 
(Mr. T. Colley.) 
* Goodallia minutissima.—Devon and Cornwall. 
Goodallia triangularis. (Turton and Kingston.) 
* Lepton nitidum.—Torbay. (Turton.) 
* Lepton squamosum.—(Turton and Kingston.) 
Kellia rubra_In great abundance in crevices of 
rocks, below high water mark. Wliitsand bay, 
common. 
Kellia suborbicularis—Numerous in stones from 
deep water. 
Loripes lacteus.—(Turton and Kingston.) 
Ampliidesma pretenue. 
Amphidesma distortum. 
Ampliidesma pubescens.-Rather rare. 
* Amphidesma truncatum.—Torbay. (Turton.) 
Amphidesma compressum_Estuaries; common. 
Abundant at Mothecombe. 
Amphidesma tenue.—(Turton and Kingston.) 
* Amphidesma declive.—Torbay. (Turton.) 
Amphidesma album.—Sandy shores. 
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