|Taxonomic revision of the Indo-Pacifie Vasticardium assimile species group (Mollusca, Cardiidae)|
Vidal, J. (1998). Taxonomic revision of the Indo-Pacifie Vasticardium assimile species group (Mollusca, Cardiidae). Apex (Brux.) 13(3): 111-125
In: Apex (Bruxelles). Société Belge de Malacologie: Bruxelles. ISSN 0773-5251, more
Several forms of Indo-Pacific Vasticardium of medium size are here grouped as the Vasticardium assimile species group. Three of these forms, mainly from the Indian Ocean and previously described as three different species, V. assimile, V. lacunosum and V. rubicundum, share many characters and have often been confused. They are considered here to represent only two species, V. assimile and V. rubicundum, while V. assimile lacunosum is treated as a subspecies restricted to the Persian Gulf. V. assimile is restricted to the western Indian Ocean, southernmost Red Sea and Persian Gulf, whereas V. rubicundum, although more abundant in the southeastern Indian Ocean, extends also in a large part of the Western Pacific, where it has been described as mindanense, compunctum, and kengaluorum. Two rare additional species, Vasticardium rhegminum, from the Masirah area (Oman), and Vasticardium thomassini sp. nov. from southeastern Africa and Madagascar, are treated.