# Retusa
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{{Short description|Genus of gastropods}}
{{Automatic taxobox
|image = Retusa.png
|image_caption = Live ''Retusa'' sp.
|image2 = Retusa leptoeneilema 01.jpg
|image2_caption = ''[Retusa leptoeneilema](/source/Retusa_leptoeneilema)''
|display_parents = 3
|taxon = Retusa
|authority = T. Brown, 1827[Brown T. (1827). ''Ill. Conch. G.B. & I.'', pl. xxxviii, fig. 1.]
|type_species = ''[Bulla obtusa](/source/Bulla_obtusa)''
|type_species_authority = Montagu, 1803
|synonyms_ref = [Bouchet, P.; Gofas, S. (2013). ''Retusa'' T. Brown, 1827. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138432 on 2014-03-30]
==Species==
Species within the genus ''Retusa'' include:
{{div col|colwidth=20em}}
* ''[Retusa abyssicola](/source/Retusa_abyssicola)'' Valdés, 2008
* ''[Retusa acrobeles](/source/Retusa_acrobeles)'' (R. B. Watson, 1883)
* †''[Retusa acrochone](/source/Retusa_acrochone)'' (Cossmann & Pissarro, 1900)
* ''[Retusa agulhasensis](/source/Retusa_agulhasensis)'' Thiele, 1925
* ''[Retusa amboynensis](/source/Retusa_amboynensis)'' (R. B. Watson, 1883)
* ''[Retusa amphizosta](/source/Retusa_amphizosta)'' (Watson, 1886)
* ''[Retusa avenaria](/source/Retusa_avenaria)'' (R. B. Watson, 1883)
* ''[Retusa atkinsoni](/source/Retusa_atkinsoni)'' (Tenison-Woods, 1876)
* ''[Retusa canariensis](/source/Retusa_canariensis)'' (Nordsieck & Talavera, 1979)
* ''[Retusa carpenteri](/source/Retusa_carpenteri)'' (Hanley, 1859)
* ''[Retusa cecillii](/source/Retusa_cecillii)'' (Philippi, 1844)
* ''[Retusa chrysoma](/source/Retusa_chrysoma)'' Burn in Burn & Bell, 1974
* ''[Retusa chukchii](/source/Retusa_chukchii)'' Chaban, 2008
* ''[Retusa complanata](/source/Retusa_complanata)'' (Watson, 1883)
* ''[Retusa concentrica](/source/Retusa_concentrica)'' (A. Adams, 1850)
* ''[Retusa crebrisculpta](/source/Retusa_crebrisculpta)'' (Monterosato, 1884)
* ''[Retusa crispula](/source/Retusa_crispula)'' (Watson, 1883)
* ''[Retusa crossei](/source/Retusa_crossei)'' (Bucquoy, Dautzenberg & Dollfus, 1886)
* ''[Retusa delicatula](/source/Retusa_delicatula)'' (A. Adams, 1862)
* ''[Retusa desgenettii](/source/Retusa_desgenettii)'' (Audouin, 1826)
* ''[Retusa diaphana](/source/Retusa_diaphana)'' Valdés, 2008
* ''[Retusa elegantissima](/source/Retusa_elegantissima)'' Habe, 1950
* †''[Retusa ennucleata](/source/Retusa_ennucleata)'' (Powell & Bartrum, 1929)
* ''[Retusa famelica](/source/Retusa_famelica)'' Watson, 1883
* ''[Retusa frielei](/source/Retusa_frielei)'' (Dall, 1881)
* ''[Retusa galapagana](/source/Retusa_galapagana)'' Dall, 1919
* ''[Retusa golikovi](/source/Retusa_golikovi)'' Chaban, 2004
* ''[Retusa insolita](/source/Retusa_insolita)'' Valdés, 2008
* ''[Retusa instabilis](/source/Retusa_instabilis)'' Minichev, 1971
* ''[Retusa laevisculpta](/source/Retusa_laevisculpta)'' (Granata-Grillo, 1877)
* ''[Retusa lata](/source/Retusa_lata)'' Chaban & Chernyshev, 2013
* ''[Retusa lenis](/source/Retusa_lenis)'' Valdés, 2008
* ''[Retusa leptekes](/source/Retusa_leptekes)'' (R. B. Watson, 1883)
* ''[Retusa leptoeneilema](/source/Retusa_leptoeneilema)'' (Brusina, 1866)
* ''[Retusa leuca](/source/Retusa_leuca)'' (R. B. Watson, 1883)
* ''[Retusa longispirata](/source/Retusa_longispirata)'' (Yamakawa, 1911)
* ''[Retusa mammillata](/source/Retusa_mammillata)'' (Philippi, 1836)
* ''[Retusa mariei](/source/Retusa_mariei)'' (Dautzenberg, 1889)
* ''[Retusa mayoi](/source/Retusa_mayoi)'' (Dall, 1889)
* ''[Retusa minima](/source/Retusa_minima)'' Yamakawa, 1911
* ''[Retusa minutissima](/source/Retusa_minutissima)'' (Monterosato, 1878)
* ''[Retusa montereyensis](/source/Retusa_montereyensis)'' Smith & Gordon, 1948
* ''[Retusa natalensis](/source/Retusa_natalensis)'' Barnard, 1963
* ''[Retusa nicobarica](/source/Retusa_nicobarica)'' Thiele, 1925
* ''[Retusa nitidula](/source/Retusa_nitidula)'' (Lovén, 1846)
* ''[Retusa obtusa](/source/Retusa_obtusa)'' (Montagu, 1803)
* ''[Retusa operculata](/source/Retusa_operculata)'' Minichev, 1966
* ''[Retusa opima](/source/Retusa_opima)'' (Finlay, 1926)
* ''[Retusa orientalis](/source/Retusa_orientalis)'' Thiele, 1925
* ''[Retusa oruaensis](/source/Retusa_oruaensis)'' (Webster, 1908)
* ''[Retusa orycta](/source/Retusa_orycta)'' (R. B. Watson, 1883)
* †''[Retusa otahuhuensis](/source/Retusa_otahuhuensis)'' (Laws, 1950)
* ''[Retusa oviformis](/source/Retusa_oviformis)'' Thiele, 1925
* ''[Retusa ovoides](/source/Retusa_ovoides)'' (Milaschewitsch, 1916)
* ''[Retusa ovulina](/source/Retusa_ovulina)'' Lin, 1991
* ''[Retusa parvula](/source/Retusa_parvula)'' (Jeffreys, 1883)
* ''[Retusa paziana](/source/Retusa_paziana)'' Dall, 1919
* ''[Retusa pelyx](/source/Retusa_pelyx)'' Burn in Burn & Bell, 1974
* ''[Retusa perforata](/source/Retusa_perforata)'' Thiele, 1925
* ''[Retusa pervia](/source/Retusa_pervia)'' (Dall, 1889)
* ''[Retusa pharetra](/source/Retusa_pharetra)'' Hedley, 1909
* †''[Retusa pressa](/source/Retusa_pressa)'' Marwick, 1928
* ''[Retusa protumida](/source/Retusa_protumida)'' (Hedley, 1903)
* ''[Retusa pseudoglobosa](/source/Retusa_pseudoglobosa)'' Nomura, 1939
* ''[Retusa pygmaea](/source/Retusa_pygmaea)'' (A. Adams, 1850)
* ''[Retusa sakuraii](/source/Retusa_sakuraii)'' (Habe, 1958)
* ''[Retusa sculpta](/source/Retusa_sculpta)'' (Gatliff & Gabriel, 1913)
* †''[Retusa segnis](/source/Retusa_segnis)'' (Laws, 1940)
* ''[Retusa siberutensis](/source/Retusa_siberutensis)'' Thiele, 1925
* †''[Retusa soror](/source/Retusa_soror)'' (Suter, 1917)
* ''[Retusa sosa](/source/Retusa_sosa)'' Ev. Marcus & Er. Marcus, 1969
* ''[Retusa spatha](/source/Retusa_spatha)'' (R. B. Watson, 1883)
* ''[Retusa striata](/source/Retusa_striata)'' (Hutton, 1873)
* ''[Retusa succincta](/source/Retusa_succincta)'' (A. Adams, 1862)
* ''[Retusa sulcata](/source/Retusa_sulcata)'' (d'Orbigny, 1841)
* ''[Retusa sulcata](/source/Retusa_sulcata)'' (Watson, 1883) is a secondary junior homonym of ''Retusa sulcata'' (d'Orbigny, 1841). No replacement name has been proposed, but the systematics of these small cephalaspids is very confused, and both species may end up in different genera after a proper re-evaluation of their status.
* ''[Retusa sumatrana](/source/Retusa_sumatrana)'' Thiele, 1925
* ''[Retusa tarutana](/source/Retusa_tarutana)'' Smythe, 1979
* ''[Retusa tenerifensis](/source/Retusa_tenerifensis)'' (Nordsieck & Talavera, 1979)
* ''[Retusa tornata](/source/Retusa_tornata)'' (Watson, 1886)
* ''[Retusa toyamaensis](/source/Retusa_toyamaensis)'' (Habe, 1955)
* ''[Retusa trunca](/source/Retusa_trunca)'' Valdés, 2008
* ''[Retusa truncatula](/source/Retusa_truncatula)'' (Bruguière, 1792)
* ''[Retusa turrigera](/source/Retusa_turrigera)'' Melvill, 1910
* ''[Retusa umbilicata](/source/Retusa_umbilicata)'' (Montagu, 1803)
* ''[Retusa variabilis](/source/Retusa_variabilis)'' (Milaschewitsch, 1912)
* ''[Retusa waughiana](/source/Retusa_waughiana)'' Hedley, 1899
* ''[Retusa xystrum](/source/Retusa_xystrum)'' Dall, 1919
{{div col end}}
;Taxa inquirenda:
* ''Retusa bysma'' Melvill, 1904
* ''Retusa candidula'' (Locard, 1892) (taxon inquirendum, name is based on a junior primary homonym.)
* ''Retusa ennurensis'' Preston, 1916
* ''Retusa multiquadrata'' Oberling, 1970 ([taxon inquirendum](/source/taxon_inquirendum); needs investigation)
* ''Retusa obesa'' (Locard, 1897)
* ''Retusa pusillina'' (Locard, 1897)
* ''Retusa robagliana'' (P. Fischer, 1869) (taxon inquirendum)
* ''Retusa semen'' (Reeve, 1855) (taxon inquirendum)
;Species brought into synonymy:
* ''Retusa alayoi'' (Espinosa & Ortea, 2004): synonym of ''[Colinatys alayoi](/source/Colinatys_alayoi)'' (Espinosa & Ortea, 2004)
* ''Retusa anderssoni'' Strebel, 1908: synonym of ''[Diaphana anderssoni](/source/Diaphana_anderssoni)'' (Strebel, 1908)
* ''Retusa antarctica'' Melvill & Standen, 1912: synonym of ''[Diaphana paessleri](/source/Diaphana_paessleri)'' (Strebel, 1905)
* ''Retusa apiculata'' (Tate, 1879): synonym of ''Tornatina apiculata'' (Tate, 1879): synonym of ''[Acteocina apiculata](/source/Acteocina_apiculata)'' (Tate, 1879)
* ''Retusa bizona'' (A. Adams, 1850): synonym of ''[Mnestia girardi](/source/Mnestia_girardi)'' (Audouin, 1826)
* ''Retusa caelata'' (Bush, 1885): synonym of ''[Pyrunculus caelatus](/source/Pyrunculus_caelatus)'' (Bush, 1885)
* ''Retusa carinensis'' de Gregorio, 1889: synonym of ''Retusa truncatula'' (Bruguière, 1792)
* ''Retusa cumberlandiana'' Strebel, 1908: synonym of ''[Cylichna cumberlandiana](/source/Cylichna_cumberlandiana)'' (Strebel, 1908)
* ''Retusa desgenettesi'' (Audouin, 1827): synonym of ''Retusa desgenettii'' (Audouin, 1826)
* ''Retusa dilatata'' Pallary, 1904: synonym of ''Retusa truncatula'' (Bruguière, 1792)
* ''Retusa domita'' (Dall, 1889): synonym of ''[Cylichnium domitum](/source/Cylichnium_domitum)'' (Dall, 1908)
* ''Retusa eumicra'' (Crosse in Crosse & Fischer, 1865): synonym of ''Tornatina eumicra'' (Crosse, 1865): synonym of ''[Acteocina eumicra](/source/Acteocina_eumicra)'' (Crosse, 1865)
* ''Retusa fourierii'' (Audouin, 1826): synonym of ''[Pyrunculus fourierii](/source/Pyrunculus_fourierii)'' (Audouin, 1826)
* ''Retusa frigida'' Hedley, 1916: synonym of ''[Diaphana paessleri](/source/Diaphana_paessleri)'' (Strebel, 1905)
* ''Retusa gaimardi'' Finlay, 1927: synonym of ''[Acteocina decorata](/source/Acteocina_decorata)'' (Pilsbry, 1904)
* ''Retusa girardi'' (Audouin, 1826): synonym of ''[Ventomnestia girardi](/source/Ventomnestia_girardi)'' (Audouin, 1826)
* ''Retusa gordonis'' Yokoyama, 1927: synonym of ''[Acteocina gordonis](/source/Acteocina_gordonis)'' (Yokoyama, 1927)
* ''Retusa inflata'' Strebel, 1908: synonym of ''[Diaphana inflata](/source/Diaphana_inflata)'' (Strebel, 1908)
* ''Retusa insignis'' (Pilsbry, 1904): synonym of ''[Decorifer insignis](/source/Decorifer_insignis)'' (Pilsbry, 1904)
* ''Retusa lactea'' (Jeffreys, 1877): synonym of ''[Diaphana lactea](/source/Diaphana_lactea)'' (Jeffreys, 1877)
* ''Retusa mariateresae'' Parenzan, 1970: synonym of ''[Bulla striata](/source/Bulla_striata)'' Bruguière, 1792
* ''Retusa marshalli'' Sykes, 1904: synonym of ''[Diaphana marshalli](/source/Diaphana_marshalli)'' (Sykes, 1904)
* ''Retusa matusimana'' Nomura, 1939: synonym of [Decorifer matusimanus](/source/Decorifer_matusimanus) (Nomura, 1939)
* ''Retusa obtusata'': synonym of ''Retusa obtusa'' (Montagu, 1803)
* ''Retusa pellucida'' (T. Brown, 1827): synonym of ''[Retusa truncatula](/source/Retusa_truncatula)'' (Bruguière, 1792)
* ''Retusa pertenuis'' (Mighels, 1843): synonym of ''Retusa obtusa'' (Montagu, 1803)
* ''Retusa pfefferi'' Strebel, 1908: synonym of ''[Diaphana pfefferi](/source/Diaphana_pfefferi)'' (Strebel, 1908)
* ''Retusa piriformis'' Nordsieck, 1972: synonym of ''Retusa truncatula'' (Bruguière, 1792)
* ''Retusa semen'' Thiele, 1925: synonym of ''[Pyrunculus pyriformis](/source/Pyrunculus_pyriformis)'' (A. Adams, 1850)
* ''Retusa semisulcata'' (Philippi, 1836): synonym of ''Retusa truncatula'' (Bruguière, 1792)
* ''Retusa strigella'' (Lovén, 1846): synonym of ''Cylichnina umbilicata'' (Montagu, 1803): synonym of ''Retusa umbilicata'' (Montagu, 1803)
* ''Retusa subcylindrica'' (Brown, 1827): synonym of ''Cylichnina umbilicata'' (Montagu, 1803): synonym of ''Retusa umbilicata'' (Montagu, 1803)
* ''Retusa tohokuensis'' Nomura, 1939: synonym of ''[Acteocina tohokuensis](/source/Acteocina_tohokuensis)'' (Nomura, 1939)
* ''Retusa truncatoides'' Nomura, 1939: synonym of ''[Acteocina truncatoides](/source/Acteocina_truncatoides)'' (Nomura, 1939)
* ''Retusa turrita'' Møller, 1842: synonym of ''Retusa obtusa'' (Montagu, 1803)
==References==
{{Reflist}}
* Nordsieck, F. (1972). Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea). Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer. Gustav Fischer, Stuttgart. XIII + 327 pp.
* 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
* Valdés, Á. (2008). Deep-sea "cephalaspidean" heterobranchs (Gastropoda) from the tropical southwest Pacific. In: Héros, V. et al. (eds) Tropical Deep-Sea Benthos 25. Mémoires du Muséum national d'Histoire naturelle. 196: 587-792.
==External links==
{{Commons category}}
* [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/page/10921172 Brown T. (1844). Illustrations of the Recent Conchology of Great Britain and Ireland, with the description and localities of all the species, marine, land, and fresh water. Ed. 2. London: Smith, Elder & Co. Drawn and Coloured from Nature. Second Edition, Greatly Enlarged]
* [https://www.biodiversitylibrary.org/page/46909031 Burch J.Q. (1945). [Untitled]. Minutes of the Conchological Club of Southern California. 47: 5-26]
* [https://www.biodiversitylibrary.org/page/7858092 Dall, W. H. (1921). Summary of the marine shellbearing mollusks of the northwest coast of America, from San Diego, California, to the Polar Sea, mostly contained in the collection of the United States National Museum, with illustrations of hitherto unfigured species. Bulletin of the United States National Museum. 112: 1-217, pls 1-22.]
* [https://biodiversitylibrary.org/page/30828055 Jeffreys, J. G. (1883). On the Mollusca procured during the cruise of H. M. S. Triton, between the Hebrides and Faeroes in 1882. Proceedings of the Zoological Society of London. (1883): 389-399, pl. 44]
* [https://www.biodiversitylibrary.org/item/109711 Monterosato, T. A. di. (1884). Nomenclatura generica e specifica di alcune conchiglie mediterranee. Virzi, printed for the author, Palermo, 152 pp.]
* [https://biodiversitylibrary.org/page/34655666 CZN. (1959). Opinion 568. Protection under the plenary powers of the specific name "obtusa" Montagu, 1803, as published in the combination "Bulla obtusa" (class Gastropoda). Opinions and declarations rendered by the International Commission on Zoological Nomenclature. 20: 404-412.]
* [https://www.biodiversitylibrary.org/page/15715842 Iredale, T. (1915). Some more misused generic names. Proceedings of the Malacological Society of London. 11: 291-306]
{{Taxonbar|from=Q3710462}}
Category:Retusidae
Category:Gastropod genera
Category:Long stubs with short prose
{{Heterobranchia-stub}}
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Adapted from the Wikipedia article [Retusa](https://en.wikipedia.org/wiki/Retusa) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Retusa?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.