Land and freshwater shells /
Jeffreys, John Gwyn, 1809-1885.
Land and freshwater shells / by John Gwyn Jeffreys. - London : J. Van Voorst, 1862. - CXIV, 341 p. : col. fronts., plates (partly col.) ; 20 cm. - British conchology, or an account of the mollusca which now inhabit the British Isles and the surrounding seas ; 1 .
Land and freshwater shells / by John Gwyn Jeffreys. - London : J. Van Voorst, 1862. - CXIV, 341 p. : col. fronts., plates (partly col.) ; 20 cm. - British conchology, or an account of the mollusca which now inhabit the British Isles and the surrounding seas ; 1 .