Demoulia

Demoulia is a genus of sea snails, marine gastropod mollusks in the family Nassariidae, the Nassa mud snails or dog whelks.[1]

Demoulia
Two shells of Demoulia abbreviata (museum specimens at Naturalis Biodiversity Center)
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Buccinoidea
Family:
Nassariidae
Subfamily:
Nassariinae
Genus:
Demoulia

Gray, 1838
Type species
Buccinum retusum Lamarck, 1822
Synonyms[1]
  • Demoulea Gray, 1847
  • Demoulinsia (incorrect subsequent spelling)
  • Desmoulea Gray, 1847
  • Desmoulinsia Woodward, 1851
  • Moulinsia Tournouer, 1874 (not available: not used as a valid name)
  • Nassa (Demoulea) [sic] (incorrect subsequent spelling of Demoulia Gray, 1838)
  • Nassa (Demoulia) Gray, 1838
  • Nassa (Desmoulea) [sic] (incorrect subsequent spelling of Demoulia Gray, 1838)
  • Streptorhega Bronn, 1856

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. [2]

Species

Species within the genus Demoulia include:

  • Demoulia abbreviata (Gmelin, 1791)
  • † Demoulia conglobata (Brocchi, 1814)
  • Demoulia nataliae Kilburn, 1972
  • Demoulia obtusata (Link, 1807)[3]
  • † 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
  1. Demoulia Gray, 1838. Retrieved through: World Register of Marine Species on 24 February 2011.
  2. 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
  3. Demoulia obtusata (Link, 1807). Retrieved through: World Register of Marine Species on 18 April 2010.
  • Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. 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
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