Page:Memoirs of the Geological Survey of Great Britain, Volume 1.djvu/393

Mollusca common to the East coasts of North America and Europe (as named by American anthors).	Places where the same species are found fossil in formations of the Glacial Epoch.	Distribution of the species in the Artic and European Seas.
Teredo navalis ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	General, from Greenland southwards.
Pholas crispatus ................................................................................................................................................................................................................................................................................................................................................................................................	Sweden, Britain ................................................................................................................................................................................................................................................................................................................................................................................................	Seas of Northern and Western Europe.
Solen ensis ................................................................................................................................................................................................................................................................................................................................................................................................	Ireland ................................................................................................................................................................................................................................................................................................................................................................................................	Scandinavian, Celtic, and South European Seas.
Panopæa arctica ................................................................................................................................................................................................................................................................................................................................................................................................	Clyde ................................................................................................................................................................................................................................................................................................................................................................................................	Northern Seas, very rare near Britain.
Mya arenaria ................................................................................................................................................................................................................................................................................................................................................................................................	Britain ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Scandinavian, and Celtic Seas.
Mya truncata and var. β ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Sweden, Russia, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Scandinavian, and Celtic Seas. (The variety β not now known alive in Europe).
Mesodesma Jauresli (Mactra deaurata) ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	A doubtful or very rare European species.
Tellina groenlandica ................................................................................................................................................................................................................................................................................................................................................................................................	Russia, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Arctic Seas (Icy Cape).
Kellia rubra ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland? Northern, Celtic and Mediterranean Seas. Ranges farther south. Lives at watermark..
Saxicava rugosa ................................................................................................................................................................................................................................................................................................................................................................................................	British, Swedish, Russian beds ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, and all the European Seas, and as far south as the Canaries.
Lucina radula ................................................................................................................................................................................................................................................................................................................................................................................................	Scotland? Sweden? ................................................................................................................................................................................................................................................................................................................................................................................................	Celtic and Mediterranean Seas.
Lucina flexuosa ................................................................................................................................................................................................................................................................................................................................................................................................	Scotland ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland; Northern, British, and Mediterranean Seas.
Astarte compressa ................................................................................................................................................................................................................................................................................................................................................................................................	Britain ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Scandinavian, and British Seas.
Astarte danmoniensis (with scotica) ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Sweden, Russia ................................................................................................................................................................................................................................................................................................................................................................................................	British and Northern Seas.
Astarte borealis ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Sweden, Russia ................................................................................................................................................................................................................................................................................................................................................................................................	Arctic, Norwegian, and Zetland Seas.
Cardium groenlandicum ................................................................................................................................................................................................................................................................................................................................................................................................	Russia ................................................................................................................................................................................................................................................................................................................................................................................................	Arctic Seas.
Cyprina islandica ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Denmark ................................................................................................................................................................................................................................................................................................................................................................................................	Northern and British Seas.
Nucula (Leda) hyperborea (var. of myalis?) ................................................................................................................................................................................................................................................................................................................................................................................................	Ireland, Sweden, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Arctic Seas.
Nucula (Leda) minuta ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Russia? ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Scandinavian, and British Seas.
Nucula tenuis ................................................................................................................................................................................................................................................................................................................................................................................................	Scotland ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland; North British Seas.
Mytilus edulis ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Sweden, Russia, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Northern and Celtic Seas.
Modiola vulgaris ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Sweden ................................................................................................................................................................................................................................................................................................................................................................................................	Scandinavian and Celtic Seas.
"Modiola discrepans" (nigra?) ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	(If identical), Greenland, Scandinavian, and North British Seas.
"Modiola discors" (our discrepans?) ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	(If identical), Greenland, Northern, Celtic, and South European Seas.
Modiola glandula (Crenella decussata) ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland. North British Seas.
Pecten islandicus ................................................................................................................................................................................................................................................................................................................................................................................................	Scotland, Sweden, Russia, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Iceland.
Ostrea borealis (a var. of edulis?) ................................................................................................................................................................................................................................................................................................................................................................................................	(edulis) in Scottish beds ................................................................................................................................................................................................................................................................................................................................................................................................	(edulis), Northern, Celtic, and south European Seas.
Anomia ephippium ................................................................................................................................................................................................................................................................................................................................................................................................	Scotland, Sweden ................................................................................................................................................................................................................................................................................................................................................................................................	Northern, Celtic, and South European Seas.
Anomia aculeata ................................................................................................................................................................................................................................................................................................................................................................................................	Ireland ................................................................................................................................................................................................................................................................................................................................................................................................	Same as the last.
Terebratula caput serpentis ................................................................................................................................................................................................................................................................................................................................................................................................	Sweden ................................................................................................................................................................................................................................................................................................................................................................................................	Northern, Celtic, and Mediterranean Seas.
Terebratula psittacea ................................................................................................................................................................................................................................................................................................................................................................................................	Britain, Canada ................................................................................................................................................................................................................................................................................................................................................................................................	Greenland, Scandinavian, and north British Seas (Leakey MSS.).
Chiton marginatus ................................................................................................................................................................................................................................................................................................................................................................................................	⁠ ................................................................................................................................................................................................................................................................................................................................................................................................	Scandinavian and British Seas.