【凹塔螺属】
凹塔螺属（学名：Retusa），又名囊螺属或冰柱螺属，是头楯目凹塔螺科之下一个海洋生物的属WoRMS_138432。
==物种==
根据WoRMS，本属目前有约100个物种WoRMS_138432：
* Retusa abyssicola Valdés, 2008
* Retusa agulhasensis Thiele, 1925
* Retusa amphizosta (Watson, 1886)
* Retusa atkinsoni (Tenison-Woods, 1876)
* Retusa canariensis (Nordsieck & Talavera, 1979)
* Retusa candidula (Locard, 1892)
* Retusa chrysoma Burn in Burn & Bell, 1974
* Retusa chukchii Chaban, 2008
* Retusa complanata (Watson, 1883)
* Retusa crebrisculpta (Monterosato, 1884)
* Retusa crispula (Watson, 1883)
* Retusa crossei (Bucquoy, Dautzenberg & Dollfus, 1886)
* Retusa desgenettii (Audouin, 1826)
* Retusa diaphana Valdés, 2008
*† Retusa ennucleata (Powell & Bartrum, 1929)
* Retusa famelica Watson, 1883
* Retusa frielei (Dall, 1881)
* Retusa golikovi Chaban, 2004
* 冰柱螺 Retusa insignis (Pilsbry, 1904)
* Retusa insolita Valdés, 2008
* Retusa instabilis Minichev, 1971
* Retusa laevisculpta (Granata-Grillo, 1877)
* Retusa lata Chaban & Chernyshev, 2013
* Retusa lenis Valdés, 2008
* Retusa leptoeneilema (Brusina, 1866)
* Retusa mammillata (Philippi, 1836)
* Retusa mariei (Dautzenberg, 1889)
* Retusa mayoi (Dall, 1889)
* 小囊螺 Retusa minima Yamakawa, 1911
* Retusa minutissima (Monterosato, 1878)
* Retusa montereyensis Smith & Gordon, 1948
* Retusa natalensis Barnard, 1963
* Retusa nitidula (Lovén, 1846)
* Retusa obtusa (Montagu, 1803)
* Retusa operculata Minichev, 1966
* Retusa opima (Finlay, 1926)
* Retusa oruaensis (Webster, 1908)
* † Retusa otahuhuensis (Laws, 1950)
* Retusa ovoides (Milaschewitsch, 1916)
* 卵囊螺 Retusa ovulina Lin, 1991
* Retusa pellucida (Sars G. O., 1878)
* Retusa pelyx Burn in Burn & Bell, 1974
* Retusa pervia (Dall, 1889)
* Retusa pharetra Hedley, 1909
* † Retusa pressa Marwick, 1928
* Retusa protumida (Hedley, 1903)
* Retusa pygmaea (A. Adams, 1850)
* Retusa robagliana (P. Fischer, 1869)
* Retusa sakuraii (Habe, 1958)
* Retusa sculpta (Gatliff & Gabriel, 1913)
* † Retusa segnis (Laws, 1940)
* Retusa semen (Reeve, 1855)
* † Retusa soror (Suter, 1917)
* Retusa sosa Ev. Marcus & Er. Marcus, 1969
* Retusa striata (Hutton, 1873)
* Retusa succincta (A. Adams, 1862)
* Retusa sulcata (d'Orbigny, 1841)
* Retusa tarutana Smythe, 1979
* Retusa tenerifensis (Nordsieck & Talavera, 1979)
* Retusa tornata (Watson, 1886)
* Retusa toyamaensis (Habe, 1955)
* Retusa trunca Valdés, 2008
* Retusa truncatula (Bruguière, 1792)
* Retusa umbilicata (Montagu, 1803)
* Retusa variabilis (Milaschewitsch, 1912)
* 束腰冰柱螺 Retusa waughiana Hedley, 1899
* Retusa xystrum Dall, 1919
* Retusa multiquadrata Oberling, 1970 (taxon inquirendum; needs investigation)
异名：
* Retusa alayoi (Espinosa & Ortea, 2004): synonym of Colinatys alayoi (Espinosa & Ortea, 2004)
* Retusa anderssoni Strebel, 1908: synonym of Diaphana anderssoni (Strebel, 1908)
* Retusa antarctica Melvill & Standen, 1912: synonym of Diaphana paessleri (Strebel, 1905)
* Retusa apiculata (Tate, 1879): synonym of Tornatina apiculata (Tate, 1879): synonym of Acteocina apiculata (Tate, 1879)
* Retusa caelata (Bush, 1885): synonym of Pyrunculus caelatus (Bush, 1885)
* Retusa carinensis de Gregorio, 1889: synonym of Retusa truncatula (Bruguière, 1792)
* Retusa cumberlandiana Strebel, 1908: synonym of 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 (Dall, 1908)
* Retusa eumicra (Crosse in Crosse & Fischer, 1865): synonym of Tornatina eumicra (Crosse, 1865): synonym of Acteocina eumicra (Crosse, 1865)
* Retusa fourierii (Audouin, 1826): synonym of Pyrunculus fourierii (Audouin, 1826)
* Retusa frigida Hedley, 1916: synonym of Diaphana paessleri (Strebel, 1905)
* Retusa gaimardi Finlay, 1927: synonym of Acteocina decorata (Pilsbry, 1904)
* Retusa girardi (Audouin, 1826): synonym of Ventomnestia girardi (Audouin, 1826)
* Retusa gordonis Yokoyama, 1927: synonym of Acteocina gordonis (Yokoyama, 1927)
* Retusa inflata Strebel, 1908: synonym of Diaphana inflata (Strebel, 1908)
* Retusa lactea (Jeffreys, 1877): synonym of Diaphana lactea (Jeffreys, 1877)
* Retusa mariateresae Parenzan, 1970: synonym of Bulla striata Bruguière, 1792
* Retusa marshalli Sykes, 1904: synonym of Diaphana marshalli (Sykes, 1904)
* Retusa matusimana Nomura, 1939: synonym of Decorifer matusimanus (Nomura, 1939)
* Retusa obtusata: synonym of Retusa obtusa (Montagu, 1803)
* Retusa pellucida (Brown, 1827): synonym of Diaphana minuta T. Brown, 1827
* Retusa pertenuis (Mighels, 1843): synonym of Retusa obtusa (Montagu, 1803)
* Retusa pfefferi Strebel, 1908: synonym of Diaphana pfefferi (Strebel, 1908)
* Retusa piriformis Nordsieck, 1972: synonym of Retusa truncatula (Bruguière, 1792)
* Retusa semen Thiele, 1925: synonym of 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 (Nomura, 1939)
* Retusa truncatoides Nomura, 1939: synonym of Acteocina truncatoides (Nomura, 1939)
* Retusa turrita Møller, 1842: synonym of Retusa obtusa (Montagu, 1803)
==参看==
* 半凹塔螺属（Semiretusa）
==参考文献==
* 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