A new species of meretrix from the Arabian sea (Mollusca : Bivalvia)
Résumé
A new, economically important venerid species, Meretrix marisarabicum n. sp., from the estuaries of Karachi, Pakistan is described based on shell morphology and DNA phylogeny. This new species can be distinguished from other Meretrix species based on overall shell shape and the form of the pallial sinus; it has large, antero-posteriorly elongate oval shells with a very shallow pallial sinus. Although a number of shells of this species were also collected at archaeological sites in the Sultanate of Oman, where it was dated to Neolithic times between 5500 and 4000 BC, no live specimens have been found there. This absence is probably related to environmental changes of the Oman littoral during the Holocene Climate Optimum.
Domaines
Sciences de l'environnementOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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