Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou Author Glover, Emily A. Author Taylor, John D. Department of Zoology, The Natural History Museum, London SW 7 5 BD (United Kingdom) emily. glover @ dial. pipex. com j. taylor @ nhm. ac. uk taylor@nhm.ac.uk text Zoosystema 2007 29 1 109 181 journal article 10.5281/zenodo.5392295 1638-9387 5392295 Genus Poumea n. gen. TYPE SPECIES. — Poumea coselia n. sp. (here designated). ETYMOLOGY. — Derived from Poum, the type locality of Poumea coselia n. sp. DIAGNOSIS. — Shell small, subcircular, umbones prominent. Sculpture of regularly spaced, thin, commarginal lamellae. Lunule asymmetric, larger in left valve. Two cardinal teeth in each valve. Anterior lateral teeth present, posterior laterals absent. Anterior adductor scar long, detached from pallial line for 3/4 of length. REMARKS Although superficially resembling Myrtea and Notomyrtea , this new genus differs in having two cardinal teeth in each valve and a much longer anterior adductor muscle scar. Also, it lacks the radial riblets between the commarginal lamellae of Notomyrtea species (see Fig. 5 ).