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Note on the presence of two species of the genus Acesta (Bivalvia: Pectinoidea: Limidae) along the coasts of West Africa
Nolf, F.; Verstraeten, J. (2005). Note on the presence of two species of the genus Acesta (Bivalvia: Pectinoidea: Limidae) along the coasts of West Africa. Neptunea 4(3): 1-22
In: Neptunea. Belgische Vereniging voor Conchyliologie, Afdeling Kust: De Haan. ISSN 1378-2029, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 98044 [ OMA ]

Keywords
    Acesta H. Adams & A. Adams, 1858 [WoRMS]; Bivalvia [WoRMS]; Limidae Rafinesque, 1815 [WoRMS]; Pectinoidea Rafinesque, 1815 [WoRMS]; ASE, Africa, West [Marine Regions]; Marine

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Abstract
    A provisional review is presented on the distribution of two Acesta species, Acesta excavata (Fabricius, 1779) and Acesta angolensis (Adam & Knudsen, 1955), actually living along the coasts of West Africa. Both species are compared and extensively illustrated.Shells of the genus Acesta H. & A. Adams, 1858 are large, thin-shelled, ovate, inequilateral, ventricose, with moderate byssal gape. They have an ill-defined anterior umbonal ridge. The anterior auricle is reduced. The cardinal area is mainly posterior to the beak and the ligament pit is broad and curved (Moore, 1969).Though we know (Marshall, 2001) animals of the genus Acesta can be active swimmers or byssally attached, Boss (1965) states that none of the soft parts of fifteen living specimens of Acesta angolensis possessed a byssus! This author supposes the animals attach byssally in the immature stage.

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