Supplanaxis niger

{{Short description|Species of gastropod}} {{Use dmy dates|date=May 2020}} {{Speciesbox | image = Supplanaxis niger 01.JPG | image_caption = Shell of ''Supplanaxis niger'' | genus = Supplanaxis | species = niger | authority = (Quoy & Gaimard, 1833) | synonyms_ref = <ref name="WoRMS" /> | synonyms = * ''Planaxis abbreviata'' Pease, 1865 * ''Planaxis abbreviata ogasawarana'' Pilsbry, 1905 · * ''Planaxis atra'' Pease, 1869 * ''Planaxis hanleyi'' E. A. Smith, 1872 * ''Planaxis nicobaricus'' Frauenfeld, 1866 * ''Planaxis niger'' Quoy & Gaimard, 1833 (original combination) * ''Planaxis nigra'' [sic] (incorrect gender ending) * ''Planaxis similis'' E. A. Smith, 1872 * ''Supplanaxis abbreviatus'' (Pease, 1865) }}

'''''Supplanaxis niger''''' is a species of sea snail, a marine gastropod mollusk in the family Planaxidae.<ref name="WoRMS">Bouchet, P. (2015). Supplanaxis niger (Quoy & Gaimard, 1833). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=833642 on 2015-04-28</ref>

==Description== The length of the shell attains 13 mm, its diameter 7.7 mm.

(Original description of ''Planaxis abbreviata ogasawarana'' Pilsbry, 1905)) The shell is larger and longer than ''Planaxis abbreviata'' Pease (synonym of ''Supplanaxis niger'' (Quoy & Gaimard, 1833)), ovate-conic, thick and solid, chocolate-brown, the body whorl covered with a dull fibrous cuticle. Sculpture of spiral grooves, often weak in the middle of the body whorl, strong below the suture and at the base. The shell contains about 6 convex whorls. The aperture is oblique, the outer lip is thickened within, and bearing 11 to 14 lirae, which extend into the throat. The basal and posterior notches are small, deep and rounded.<ref>[https://www.biodiversitylibrary.org/page/26293132 Pilsbry, H. A. (1905). New Japanese marine Mollusca. Proceedings of the Academy of Natural Sciences of Philadelphia. 57: 101-112 [8 April], 113-122, pls 2-5]</ref>

==Distribution== This marine species occurs off Madagascar, Japan and Papua New Guinea.

==References== {{Reflist}} * Poppe G.T., Tagaro S.P. & Stahlschmidt P. (2015). ''New shelled molluscan species from the central Philippines I''. Visaya. 4(3): 15–59. * Hasegawa K. (2017). Family Planaxidae. pp. 794–795, in: T. Okutani (ed.), Marine Mollusks in Japan, ed. 2. 2 vols. Tokai University Press. 1375 pp.

==External links== {{Commons category}} * [http://www.biodiversitylibrary.org/bibliography/2132 Quoy, J.C.R. & Gaimard, P. (1833) ''Mollusques''. In Dumont d’Urville, M.J. (Ed.) Voyage de Découverts de l’Astrolabe, Éxécuté par Ordre du Roi Pendant les Années 1826–1827–1828–1829, sous le Commandement de M. J. Dumont d' Urville. Zoologie, Tome 2. J. Tatsu] * [https://www.biodiversitylibrary.org/page/16085891 Smith, E. A. (1872). A list of the species of the genus Planaxis, with descriptions of eleven new species. Annals and Magazine of Natural History. ser. 4, 9: 37-47] * [https://www.biodiversitylibrary.org/page/15978904 Pease, W. H. (1869). Description of new species of marine Gasteropodæ inhabiting Polynesia. American Journal of Conchology. 5: 64-79] * [https://www.biodiversitylibrary.org/page/28497491 Pease, W. H. (1865). Descriptions of new genera and species of marine shells from the islands of the Central Pacific. Proceedings of the Zoological Society of London. (1865): 512-517] * [https://biodiversitylibrary.org/page/26724138 Dunker, W. & Zelebor, J. (1866). Bericht über die von der Novara-Expedition mitgebrachten Mollusken. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien. 16: 909-916.]

Category:Planaxidae Category:Gastropods described in 1833 Category:Taxa named by Joseph Paul Gaimard Category:Taxa named by Jean René Constant Quoy