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The Malacological Society of Australasia

Molluscan Research Abstract

Molluscan Research

Volume 19, Issue 2: 19 November 1998

Some Pectinoidea (Mollusca: Bivalvia: Propeamussiidae, Pectinidae) of the Red Sea

Henk H. Dijkstra * and Jorgen Knudsen **

* Institute of Systematics and Population Biology, University of Amsterdam, Zoological Museum, Department of Malacology, P.O. Box 94766, 1090 GT Amsterdam, The Netherlands (E-mail: h.h.dijkstra@wxs.nl). ** Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark.

The report is based on a collection of 344 samples of pectinoids from the Red Sea and adjacent waters. Four species of Propeamussiidae and 18 species of Pectinidae were recognized. One pectinid taxon, Mirapecten yaroni, is undescribed. Three taxa are new pectinid records for the area: Delectopecten musorstomi Poutiers, 1981, Glorichlamys quadrilirata (Lischke, 1870), and Mimachlamys andamanica (Preston, 1908). Gloripallium pallium (Linnaeus, 1758) is recorded as living in the area for the first time. Lectotypes are designated for Similipecten eous (Melvill in Melvill & Standen, 1907) Decatopecten flabelloides (Reeve, 1852), Coralichlamys madreporarum (G.B. Sowerby 2nd., 1842) and Semipallium crouchi (Smith, 1892). Type localities of 20 taxa and the depository of type material for 19 taxa are given. All taxa are figured and extensive synonymy is presented. Intraspecific variation of most taxa is described. The total geographic distribution of each taxon is outlined. The following taxa may be endemic for the Erythrean subprovince: Propeamussiidae: Parvamussium formosum (Melvill in Melvill & Standen, 1907), P. siebenrocki (Sturany, 1901), and P. thyrideum (Melvill in Melvill & Standen, 1907); Pectinidae: Pecten erythraeensis G.B. Sowerby 2nd, 1842, Gloripallium maculosum (Forsskal, 1775), Laevichlamys superficialis (Forsskal, 1775). Two taxa: L. superficilalis (Forsskal, 1775) and Mimachlamys senatoria (Gmelin, 1791) are recorded from the Little Bitter Lake, Suez Canal. None of the taxa dealt with has migrated into the Mediterranean Sea.
Key words: Pectinoidea, Propeamussiidae, Pectinidae, taxonomy, zoogeography, Red Sea, NW Indian Ocean.

pp. 43-104.

 

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