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Characteristics, distribution and ecology
Taxonomische classification
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Jeffreys, J.G., 1869. British conchology. Vol. V -258 pp. Van Voorst, London.

Poppe, G.T. & Y. Goto, 1991. European Seashells. Vol. I. 352 pp. Wiesbaden/Verlag Christa Hemmen.

Regteren Altena, C. O. van, Bloklander, A. & L. P. Pouderoyen, 1957. De fossiele schelpen van de Nederlandse stranden en zeegaten. Basteria, 21(4 & 5): 67-73.

Seaward, D.R., 1990. Distribution of the marine molluscs of north west Europe. Nature Conservancy Council.

Neptunea contraria