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Basteria - 1971, cahier de 76 pages dont 12 planches Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

, 11 figs, 2 pls, 4to, wrps (WTKG 17#4) 0.0.

New taxa: Lutraria scaldensis n. sp., Lutraria procera n. sp., Lutraria obliqua n. sp., Lutraria frangula n. sp. Rotterdam. Dr. W. Backhuys Publisher. 32 pp., 2 pls, br. 4.

New taxon: Ensis altenensis n. sp. 12 pp., 8 figs, 8.

4 pp., 1 fig., 8.

32 pp., 13 figs, 8.

In 1975 the North Sea beach at Scheveningen was raised about 1 m with sand dredged from the North Sea bottom about 20 km northwest of Scheveningen at a sea depth of 20-26 m. Molluscs were very abundant in this sand, and among them were many species quite unusual in the material washed ashore on (this part of) the Dutch coast. In the second part of this paper the systematical chapter in continued. 31 pp., stapled 4.…