Demoulia is a genus of sea snails, marine gastropod mollusks in the family Nassariidae, the Nassa mud snails or dog whelks.
Description The ovate-globose shell is covered with a downy epidermis. The spire is short, conical with a papillary apex. The whorls are depressed. The aperture is ovate. The inner lip is thickened, with a ridge posteriorly. The outer lip is contracted, thickened externally and plicated internally.Adams, H. & Adams, A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst. Vol. 1: xl + 484 pp.; vol. 2: 661 pp.; vol. 3: 138 pls
Species Species within the genus Demoulia include: Demoulia abbreviata (Gmelin, 1791) † Demoulia conglobata (Brocchi, 1814) Demoulia nataliae Kilburn, 1972 Demoulia obtusata (Link, 1807) † Demoulia pupa (Brocchi, 1814) Demoulia tryoni (Crosse, 1869) Demoulia ventricosa (Lamarck, 1816) † Demoulia zbyszewskii Landau, Marques da Silva & Gili, 2009 Species brought into synonymy Demoulia kurodai Tomlin, 1932 : synonym of Nassarius sufflatus (Gould, 1860) Demoulia pulchra Gray, 1838 : synonym of Demoulia obtusata (Link, 1807) Demoulia retusa (Lamarck, 1822): synonym of Demoulia ventricosa (Lamarck, 1816)
References
Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
External links
Gray, J.E. (1838). On some new species of quadrupeds and shells. Annals of Natural History. ser. 1, 1: 27-30 Galindo, L. A.; Puillandre, N.; Utge, J.; Lozouet, P.; Bouchet, P. (2016). The phylogeny and systematics of the Nassariidae revisited (Gastropoda, Buccinoidea). Molecular Phylogenetics and Evolution. 99: 337-353