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Hemilienardia

Hemilienardia is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae, the turrids.

Description

This genus is readily distinguishable from Lienardia by the apex. The multispiral protoconch consists of a cone of 3½ smooth rounded whorls. It lacks the characteristic diagonally cancellated sculpture of the other genera in this family. The succeeding adult whorls not only differ in sculpture, but are wound in so divergent a spiral and increase at so disproportionate rate as to project that protoconch in a mucronate point. In the colour of the type the contrast is even more violent, as there the brilliant snow-white apex against the deep rose-red is visible to the naked eye. Another generic feature is an opaque peripheral zone. The deep-seated columella folds, so conspicuous in Lienardia, are here less developed. The species are small, short, stumpy and usually brightly coloured. They frequent the upper zone of coral reefs.

Species

Species within the genus Hemilienardia include:

Species brought into synonymy:
  • Hemilienardia pinguis <small>(Garrett, A., 1873)</small>: synonym of Hemilienardia malleti <small>(Récluz, 1852)</small>

References

  • Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308
  • Powell, A.W.B. 1966. The molluscan families Speightiidae and Turridae, an evaluation of the valid taxa, both Recent and fossil, with list of characteristic species. Bulletin of the Auckland Institute and Museum. Auckland, New Zealand 5: 1–184, pls 1–23 [
  • Boettger O. (1895). Die marinen Mollusken der Philippinen (IV) nach den Sammlungen des Herrn José Florencio Quadra in Manila. IV. Die Pleurotomiden. (Schluss.). Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. 27: 41-63
  • Wiedrick S.G. (2017). Aberrant geomorphological affinities in four conoidean gastropod genera, Clathurella Carpenter, 1857 (Clathurellidae), Lienardia Jousseaume, 1884 (Clathurellidae), Etrema Hedley, 1918 (Clathurellidae) and Hemilienardia Boettger, 1895 (Raphitomidae), with the descriptionof fourteen new Hemilienardia species from the Indo-Pacific. The Festivus. special issue: 2-45.

External links

  • [http://www.bagniliggia.it/WMSD/HtmFamily/RAPHITOMIDAELS.htm Worldwide Mollusc Species Data Base: Raphitomidae]