Exomilus edychrous

{{Short description|Species of gastropod}} {{Use dmy dates|date=April 2019}} {{Speciesbox |taxon = Exomilus edychrous |image = Exomilus edychrous 001.jpg |image_caption = Shell of E''xomilus edychrous'' |authority = (Hervier, 1897) | synonyms_ref = <ref name="WoRMS" /> | synonyms = * ''Clathurella edychroa'' Hervier, 1897 (original combination) * ''Clathurella edychroa'' var. ''violacea'' Hervier, 1897 * ''Exomilus anxius'' (Hedley, 1909) * ''Exomilus edychroa violacea'' Hervier, 1897 * ''Kermia anxia'' Hedley, 1909 * ''Kermia anxius'' Hedley, 1909 * ''Kermia edychroa'' (Hervier, 1897) * ''Kermia gracilis'' de Folin, 1879 * ''Mangelia anxia'' Hedley, 1909 * ''Pleurotoma gracilis'' de Folin, 1879 (invalid: junior homonym of ''Pleurotoma gracilis'' Conrad, 1830 and ''P. gracilis'' Scacchi, 1836) |display_parents = 3 }}

'''''Exomilus edychrous''''' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.<ref name="WoRMS">Bouchet, P. (2015). Exomilus edychrous (Hervier, 1897). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php/aphia.php?p=taxdetails&id=714108 on 2016-09-20</ref>

==Description== The length of the shell varies between 3 mm and 4.1 mm; its diameter is 1.1 mm.

(Original description) The small, solid, shell is subcylindrical. The shoulder is sloping, the body perpendicular, the base excavate, sharply angled at base and shoulder. The colour of all specimens seen are faded, but appear to have been buff, the protoconch and spots on the lower whorls darker, the basal keel white. The teleoconch contains three whorls. The protoconch consists of 3½ whorls, of which the first is turbinate, slightly tilted and engraved with microscopic spirally punctured lines, followed by two transitional whorls keeled at the periphery, and ornamented by fine close obliquely radiating riblets. The adult sculpture : on the body whorl, fifteen spiral cords, of which the third and eighth are prominent, expressing the angle above and below the barrel of the whorl, the basal cords are broken into beads. The penultimate whorl shows six, and the antepenultimate with three spirals. Broader than the spirals are the perpendicular radials, fourteen on the body whorl, and proportionately fewer on the rest. Commencing at the suture and vanishing on the base, they raise tubercles at the intersection of the spirals. The resulting meshes enclose deep pits in which is a microscopic shagreen surface. The aperture is contracted, straight above, flexed below, fortified by a broad strong varix, out of which a deeply notched subcircular anal sulcus is excavated. The spiral sculpture traverses the varix. Within the outer lip are four tubercles. The inner lip is excavate. The siphonal canal is short and broad.<ref> [http://www.biodiversitylibrary.org/item/30113#page/534/mode/1up Ch. Hedley (1909), Mollusca from the Hope Islands, north Queensland; Proceedings of the Linnean Society of New South Wales v. 34 p. 458] {{PD-notice}} </ref>

==Distribution== This marine species has a wide distribution: New Caledonia, Queensland, Australia; off Réunion and Southeast Africa

==References== {{Reflist}} * Hervier, J 1897. ''Descriptions d'espèces nouvelles de Mollusques, provenant de l'Archipel de la Nouvelle-Calédonie (suite)''. Journal de Conchyliologie 44: 138-151 * 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 * Kilburn, R. N. 2009. G''enus Kermia (Mollusca: Gastropoda: Conoidea: Conidae: Raphitominae) in South African waters, with observations on the identities of related extralimital species.'' African Invertebrates 50(2): 217-236

==External links== * [https://dx.doi.org/10.1080/14772000.2012.753137 Fedosov A. E. & Puillandre N. (2012) ''Phylogeny and taxonomy of the Kermia–Pseudodaphnella (Mollusca: Gastropoda: Raphitomidae) genus complex: a remarkable radiation via diversification of larval development.'' Systematics and Biodiversity 10(4): 447-477] * {{Gastropods.com|key=6|id=41866|title=''Exomilus edychrous''|access-date=16 January 2019}} * [https://science.mnhn.fr/institution/mnhn/collection/im/item/2000-2913?listIndex=6&listCount=90 MNHN, Paris: ''Exomilus edychrous'' (syntype in the MNHN, Paris)] * {{cite journal | last1 = Tucker | first1 = J.K. | year = 2004 | title = Catalog of recent and fossil turrids (Mollusca: Gastropoda) | url = http://www.mapress.com/zootaxa/2004f/z00682f.pdf | journal = Zootaxa | volume = 682 | pages = 1–1295| doi = 10.11646/zootaxa.682.1.1 }} * [https://www.researchgate.net/profile/Fabio_Moretzsohn/publication/251566653_Hawaiian_Marine_mollusks_An_update_to_Kay_1979/links/0c96051f093dfd87a4000000/Hawaiian-Marine-mollusks-An-update-to-Kay-1979.pdf Moretzsohn, Fabio, and E. Alison Kay. "HAWAIIAN MARINE MOLLUSCS." (1995)]

{{Taxonbar|from=Q13632122}} {{Commonscat}} {{DEFAULTSORT:Exomilus Edychrous}} edychrous Category:Gastropods described in 1909