Hemilienardia Explained

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.^{[1] [2]}

Species

Species within the genus Hemilienardia include:

• Hemilienardia acinonyx Fedosov, Stahlschmidt, Puillandre, Aznar-Cormano & Bouchet, 2017
• Hemilienardia albomagna Wiedrick, 2017
• Hemilienardia albostrigata (Baird, 1873)
• Hemilienardia apiculata (Montrouzier in Souverbie & Montrouzier, 1864)
• Hemilienardia balteata (Pease, 1860)
• Hemilienardia bicolor Bozzetti, 2018
• Hemilienardia boucheti Wiedrick, 2017
• Hemilienardia calcicincta (Melvill & Standen, 1895)
• Hemilienardia chrysoleuca (J.C. Melvill, 1923)
• Hemilienardia contortula (G. Nevill & H. Nevill, 1875)
• Hemilienardia ecprepes (J.C. Melvill, 1927)
• Hemilienardia elongata Wiedrick, 2017
• Hemilienardia fenestrata (Melvill, 1898)
• Hemilienardia fusiforma Wiedrick, 2017
• Hemilienardia gemmulata Wiedrick, 2017
• Hemilienardia goubini (Hervier, 1896)
• Hemilienardia hersilia Hedley, 1922
• Hemilienardia homochroa Hedley, 1922
• Hemilienardia infulabrunnea Wiedrick, 2017
• Hemilienardia iospira (Hervier, 1896)
• Hemilienardia lynx Fedosov, Stahlschmidt, Puillandre, Aznar-Cormano & Bouchet, 2017
• Hemilienardia malleti (Récluz, 1852)
• Hemilienardia micronesialba Wiedrick, 2017
• Hemilienardia mikesevernsi Wiedrick, 2017
• Hemilienardia minialba Wiedrick, 2017
• Hemilienardia minor (G. Nevill & H. Nevill, 1875)
• Hemilienardia moffitti Wiedrick, 2017
• Hemilienardia multidentata Wiedrick, 2017
• Hemilienardia notopyrrha (Melvill & Standen, 1896)
• Hemilienardia obesa (de Folin, 1879)
• Hemilienardia ocellata (Jousseaume, 1883)
• Hemilienardia pardus Fedosov, Stahlschmidt, Puillandre, Aznar-Cormano & Bouchet, 2017
• Hemilienardia purpurascens (Dunker, 1871)
• Hemilienardia roseorobusta Wiedrick, 2017
• Hemilienardia rubicunda (Gould, 1860)
• Hemilienardia shawnmilleri Wiedrick, 2017
• Hemilienardia subspurca (Hervier, 1896)
• Hemilienardia thyridota (Melvill & Standen, 1896)
• Hemilienardia twilabratcherae Wiedrick, 2017

Species brought into synonymy:

• Hemilienardia pinguis (Garrett, A., 1873): synonym of Hemilienardia malleti (Récluz, 1852)

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== {{Commons category}} * [http://www.bagniliggia.it/WMSD/HtmFamily/RAPHITOMIDAELS.htm Worldwide Mollusc Species Data Base: Raphitomidae]
• Tucker . J.K. . 2004 . Catalog of recent and fossil turrids (Mollusca: Gastropoda) . Zootaxa . 682 . 1–1295. 10.11646/zootaxa.682.1.1 .

Notes and References

1. https://archive.org/details/revisionofaustri00hedl Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56
2. http://bora.uib.no/bitstream/handle/1956/12445/1839-8578-1-PB.pdf?sequence=3&isAllowed=y Høisæter, Tore. "A taxonomic review of the Norwegian species of Raphitoma (Gastropoda: Conoidea: Raphitomidae)." (2016).