FAUNA AND FLORA OF PLYMOUTH SOUND. 179 



Gastrana (Schura.). 



fragilis (Linn.). Probably in the Sound. 

 Tellina (Linn.). 



crassa (GmeL). In the Sound. Dredged, 

 donacina (Linn.). Probably in the Sound in 20 fathoms, 

 pusilla (Phil.). Whitsand Bay, near Raeme Head. 3 — 85 fathoms, 

 tenuis (da Costa). Whitsand Bay. 

 fabula (Gron.). Whitsand Bay. 

 balthica (Linn.). In the Sound. 



balaustina (Linn.). In trawl refuse from 20 fathoms off the coast. 

 Scrobicularia (Sebum.). Low-water to 4 fathoms. 



piperata (Bellon.). Common in sandy mud. Probably in estuaries of Plym 



and Tamar. 

 alba (Wood). Whitsand Bay. 

 prismatica (Mont.). Whitsand Bay. 

 Donax (Linn.). Littoral or sublittoral. 

 trunculus (Linn.). Whitsand Bay. 

 politus (Poli). Whitsand Bay. 



vittatus (Da Costa). Common all along coast (Parfitt). 

 Amphidesma (Lam.). 20 fathoms. 



castaneum (Mont.). Probably in Sound. Rare. 

 Mactra (Linn.). Low-water to 50 fathoms. 



solida (Linn.). In the Sound and Whitsand Bay. 

 var. truncata (Mont.). In the Sound. 

 var. elliptica (Brown). In the Sound, 

 stultorura (Linn.). Whitsand Bay. Abundant, 

 subtruncata (da Costa). In the Sound. 

 Lutraria (Lamk.). Low- water to 25 fathoms, 

 elliptica (Lamk.). Whitsand Bay. 



oblongata (Chem.). Probably in Sound or Whitsand Bay. Rare. 

 Tapes (Miihlf.). Littoral to 140 fathoms. 



aureus (Gmel). Off Plymouth. 3 — 10 fathoms, 

 virgineus (Linn.). In trawl refuse. 5 — 35 fathoms, 

 pullastra (Mont.). In the Sound. — 7 fathoms. 

 var. perforans. In limestone in the Sound, 

 decussatus (Linn.). Probably in Sound at low- water mark. 

 Venus (Linn.). 



verucosa (Linn.). Probably in Sound. Littoral to 7 fathoms, 

 casina (Linn.). Probably in Sound. 12 — 145 fathoms. 

 var. reflexa (Mont.). Probably in Sound, 

 gallina (Linn.). In the Sound. Common — 100 fathoms, 

 fasciata (Da Costa). In the Sound. Littoral to 60 fathoms, 

 ovata (Penn.). In the Sound. 3 — 100 fathoms, 

 chione (Linn.). In trawl refuse. Not uncommon, 

 exoleta (Linn.). Probably in Sound, 

 lincta (Pult.). Common in Sound. 

 Circe (Schum.). 



minima (Mont.). Probably in Sound. 

 Lucinopsis (Forb. and Han.). 3 — 80 fathoms. 



undata (Penn.). Whitsand Bay. Not common. 

 Cyprina (Lamk.). 



islandica (Linn.). Probably in Sound. 

 Astarte (Sower.). 



sulcata (da Costa). Dredged in the Sound and Whitsand Bay. 8 — 80 



fathoms. 

 var. elliptica (F. and H.). In the neighbourhood (Rogers), 

 triangularis (Mont.). Dredged in the Sound. 5 — -55 fathoms. 

 Isocardia (Lam.). 



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



