Retusa truncatula

{{Short description|Species of marine gastropod mollusc in the family Retusidae}} {{Speciesbox | image = Retusa truncatula 01.jpg | image_caption = | genus = Retusa | species = truncatula | authority = (Bruguière, 1792) | synonyms_ref = <ref name="WoRMS"/> | synonyms = ''Bulla pellucida'' Brown, 1827 * ''Bulla retusa'' Maton & Rackett, 1807 * ''Bulla semisulcata'' Philippi, 1836 * ''Bulla truncata'' Adams J., 1800 * ''Bulla truncatula'' Bruguière, 1792 (original combination) * ''Coleophysis effusa'' Monterosato, 1890 (dubious synonym) * ''Cylichna truncatella'' Locard, 1886 * ''Retusa (Coleophysis) piriformis'' Nordsieck, 1972 * ''Retusa carinensis'' de Gregorio, 1889 * ''Retusa dilatata'' Pallary, 1904 (dubious synonym) * ''Retusa dilatata'' var. ''minor'' Pallary, 1904 (dubious synonym) * ''Retusa piriformis'' Nordsieck, 1972 * ''Retusa semisulcata'' (Philippi, 1836) * ''Utriculus truncatulus'' (Bruguière, 1792) * ''Utriculus truncatulus'' var. ''pellucida'' (Brown, 1827) * ''Volvaria pellucida'' Brown, 1827 }}

'''''Retusa truncatula''''' is a species of very small head-shield sea snail or barrel-bubble snail, a marine gastropod mollusc in the family Retusidae.<ref name="WoRMS">Gofas, S. (2013). ''Retusa truncatula'' (Bruguière, 1792). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141138 on 2014-03-20</ref>

The subspecies ''Retusa truncatula'' var. ''mammilata'': is a synonym of ''Retusa mammillata'' (Philippi, 1836)

==Description== The shell is minute with a flattened spire and longitudinal striations. The colour of the living animal is white. The adult length is usually less than 4 mm.<ref name="Gosliner 1987">Gosliner, T.M. 1987. ''Nudibranchs of Southern Africa'' {{ISBN|0-930118-13-8}}</ref>

==Distribution== This species occurs in South Africa, from False Bay to Durban in shallow estuaries. It is also known from northern Europe, the Mediterranean Sea and the Canary Islands.<ref name="Gosliner 1987" />

==Natural history== This small sea snail lives from the intertidal zone to just below the low water mark. It burrows in the mud or sand of tidal marshes, and feeds on foraminiferans.<ref name="Gosliner 1987" />

==References== {{Reflist}} * Thiele J. (1925). Gastropoden der Deutschen Tiefsee-Expedition. II Teil. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898-1899. 17(2): 35-382, pls 13-46 * Nordsieck, F. (1972). Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea). Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer. Gustav Fischer, Stuttgart. XIII + 327 pp. * Gosliner, T. 1987. Nudibranchs of southern Africa: A guide to Opisthobranch molluscs of southern Africa Sea. Challengers, Monterey. * de Kluijver, M. J.; Ingalsuo, S. S.; de Bruyne, R. H. (2000). Macrobenthos of the North Sea [CD-ROM]: 1. Keys to Mollusca and Brachiopoda. World Biodiversity Database CD-ROM Series. Expert Center for Taxonomic Identification (ETI): Amsterdam, the Netherlands. ISBN 3-540-14706-3. 1 cd-rom. * 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. * Ceulemans, L.; Van Dingenen, F.; Landau B. M. (2018). The lower Pliocene gastropods of Le Pigeon Blanc (Loire-Atlantique, northwest France). Part 5 – Neogastropoda (Conoidea) and Heterobranchia (fine). Cainozoic Research. 18(2): 89-176.

==External links== {{Commons category|Retusa truncatula}} * [https://biodiversitylibrary.org/page/8892006 Bruguière J.G. (1789-1792). Encyclopédie méthodique ou par ordre de matières. Histoire naturelle des vers, volume 1. Paris: Pancoucke. Pp. i-xviii, 1-344] * [https://www.biodiversitylibrary.org/page/12897669 Adams, J. (1800). Descriptions of some minute British shells. Transactions of the Linnean Society of London. 5(1): 1-6] * [https://biodiversitylibrary.org/page/766478 Maton, W. G. & Rackett, T. (1807). A descriptive catalogue of the British Testacea. Transactions of the Linnean Society of London. 8 (17): 17-250, 5 pls] * [https://www.biodiversitylibrary.org/item/127868 Brown, T. (1827). Illustrations of the conchology of Great Britain and Ireland. Drawn from nature. W.H. Lizars and D. Lizars, Edinburgh and S. Highley, London. 144 pp., 52 pls.] * [https://www.biodiversitylibrary.org/bibliography/100735#/summary Philippi, R. A. (1836). Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Vol. 1. I-XIV, 1-303, Tab. XIII-XXVIII. Schropp, Berlin] * [https://biodiversitylibrary.org/page/11568606 Monterosato, T. A. di. (1890). Conchiglie della profondità del mare di Palermo. Il Naturalista Siciliano. 9(6): 140-151 [March 1st, 1890]; 9(7): 157-166] * [https://www.biodiversitylibrary.org/page/10831012 Locard, A. (1886). Prodrome de malacologie française. Catalogue général des mollusques vivants de France. Mollusques marins. Lyon: H. Georg & Paris: Baillière. x + 778 pp] * [https://biodiversitylibrary.org/page/16290430 Pallary, P. (1904-1906). Addition à la faune malacologique du Golfe de Gabès. Journal de Conchyliologie. 52(3): 212-248, pl. 7 [25 October 1904]; 54(2): 77-124, pl. 4]

Category:Retusidae Category:Gastropods described in 1792 Category:Taxa named by Jean Guillaume Bruguière