vol. XLVIII 2012 bollettino malacologico international journal of malacology XLVIII 2012 supplemento 9 Arie W. Janssen Late Quaternary to Recent holoplanktonic Mollusca (Gastropoda) from bottom samples of the eastern Mediterranean Sea: systematics, morphology bollettino malacologico - international journal of malacology Direttore responsabile: Paolo Crovato e-mail:
[email protected] supplemento 9 Coordinamento produzione: Prismi srl, Napoli Autorizzazione del Tribunale di Milano n. 479 del 15 ottobre 1983 Grafica e impaginazione: Grafica Elettronica srl, Napoli Poste Italiane - spedizione in a.p. - 70% Stampa: Arti Grafiche Solimene srl, Napoli Direzione Commerciale - Napoli Finito di stampare il 30 maggio 2012 ISSN 0394-7149 maggio 2012 spedizione n. 1/2012 Boll. Malacol., 48: 1-105 (suppl. 9, 2012) Late Quaternary to Recent holoplanktonic Mollusca (Gastropoda) from bottom samples of the eastern Mediterranean Sea: systematics, morphology Arie W. Janssen* * Netherlands Centre for Abstract Biodiversity Naturalis, P.O. Holoplanktonic molluscs of 62 bottom samples and the sieving residues < 0.6 mm of a single gravity core, were Box 9517, NL-2300 RA evaluated. The total number of species found in all samples together is 49 (Pterotracheoidea 11, Janthinidae 2, Leiden, The Netherlands; Limacinoidea 5, Cavolinioidea 16, Cymbulioidea 8, Gymnosomata 5, incertae sedis 2). Results obtained from the currently: 12, Triq residues of bottom samples only give information about which species have been present in the roughly esti- tal’Hamrija, Xewkija XWK 9033, Gozo, Malta; mated interval ‘late Pleistocene to Holocene, Recent included’. The gravity core samples were previously dated
[email protected] on the basis of planktonic Foraminifera, comprising the interval of latest Saalian (Marine Isotope Stage 6) to Holocene, and some more detailed information on the vertical distribution of the species could be obtained.