180 PRELIMINARY REPORT UPON THE 



Cardium (Linn.). Littoral or sublittoral in general. 



aculeatum (Linn.). In Plymouth Sound in deep water. Rare. 



echinatum (Linn.). In the Sound in deep water. Common. 



edule (Linn.). In sand or sandy mud. Estuaries of Plym and Tamar. Common. 



nodosum (Turt.). Whitsand Bay, near Raeme Head. 3 — 80 fathoms. 



fasciatum (Mont.). Whitsand Bay. 5 — 50 fathoms. 



norvegicum (Speng.). Probably in Sound. 15 — 30 fathoms. 



tuberculatum (Linn.). In deep water (Bellamy). 



exiguum (Gmel.). Oozy ground. Probably in Sound. 13 — 15 fathoms. 

 Lucina (Brug.). 



borealis (Linn.). Probably in the Sound. Low-water to 90 fathoms. 



spinifera (Mont.). In the Sound. 28 fathoms. 

 Axinus (Sowby.) 



flexuosus (Mont.). Probably in the Sound. 

 Loripes (Poli.). 



lacteus (Linn.). Probably in the Sound. 

 Diplodonta (Brown). 



rotundata (Mont.). Found dead in Sound in 22 fathoms. 

 Cyamium (Phil.). 



minutum (0. Fabr.). Whitsand Bay. Between tide-marks. 

 Kellia (Turt.)' Low-water to 60 fathoms. 



suborbicularis (Mont.). Probably in Sound. 

 Lasaea (Leach). 



rubra (Mont.). Whitsand Bay. 

 Lepton (Turt.). 



squamosum (Mont.). In the Sound in 22 fathoms. 



clarkise (Clark). In the Sound. 18 — 80 fathoms. 

 Galeomma (Turt.). 



turtoni (Ed. of 'Zool. Journl.'). Probably in Sound. 3 — 4 fathoms. 

 Mytilus (Linn.). 



edulis (Linn.). In the Sound and estuaries. Abundant. Generally littoraL 



modiolus (Linn.). In the Sound. 



adriaticus (Lam.). Probably in the Sound. 



barbatus (Linn.). Probably in the Sound. Rare. 

 Modiolaria (Beck). 



discors (Linn.). On roots of laminaria (Parfitt). 



marmorata (Forbes). Probably in Sound, embedded in Tunicata. 



costulata (Risso). Probably in Sound, low-water mark. Rare. 

 Crenella (Brown). 



rhombea (Berk.). Probably in Sound. 20 fathoms. Rare. 

 Nucula (Lam.). 



nucleus (Linn.). Probably in Sound, 7 — 90 fathoms. 



var. radiata (F. & H.). Probably in Sound. 7 — 25 fathoms. 

 Area (Linn.). 



tetragona (Poli.). In crevices in rocks. Hamoaze. 



lactea (Linn.). Whitsand Bay. 7 — 27 fathoms. 

 Pectunculus (Lam.). 



glycymeris (Linn.). In Sound. 15 — 25 fathoms, 

 Avicula (Klein). 



hirundo (Linn.). In trawl refuse from offing. 

 Pinna (Lister). 



rudis (Linn.). In trawl refuse from deep water. 

 Lima (Brug.). 



subauriculata (Mont.). In Sound. 25 fathoms. Whitsand Bay. 15 — 50 

 fathoms. Rare. 



loscombii (Sowerby). Probably in Sound. Low-water to 50 fathoms. 



hians (Gmelin). Probably in Sound. Low- water to 50 fathoms. 

 Ostrea (Linn.). 



edulis (Linn.). Cattewater. Prince Rock. Hamoaze. 



