Eucyclidae

Eucyclidae is a family of gastropods in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

This family has no subfamilies.

Genera
Genera within the family Eucyclidae include:
 * Amberleya J. Morris & Lycett, 1851 †
 * Bathybembix Crosse, 1893
 * Calliomphalus Cossmann, 1888 †
 * Calliotropis Seguenza, 1903
 * Cidarina Dall, 1909
 * Echinogurges Quinn, 1979
 * Eucycloidea Hudleston, 1888 †
 * Ginebis Is. Taki & Otuka, 1943
 * Lischkeia Fischer, 1879
 * Putzeysia Sulliotti, 1889
 * Riselloidea Cossmann, 1909 †
 * Spinicalliotropis Poppe, Tagaro & Dekker, 2006
 * Tibatrochus Nomura, 1940
 * Toroidia Hoffman & Freiwald, 2018
 * Turcica Adams & Adams, 1854
 * Genera brought into synonymy:
 * Bembix R. B. Watson, 1879 : synonym of Bathybembix Crosse, 1893 (Invalid: Junior homonym of Bembix Fabricius, 1775 [Hymenoptera])
 * Convexia Noda, 1975 : synonym of Ginebis Is. Taki & Otuka, 1943
 * Mazastele Iredale, 1936 : synonym of Calliotropis Seguenza, 1903
 * Ptychostylis Gabb, 1865 : synonym of Turcica Adams & Adams, 1854
 * Solaricida Dall, 1919 : synonym of Calliotropis L. Seguenza, 1903 (synonym)
 * Solariellopsis Schepman, 1908 : synonym of Calliotropis (Schepmanotropis) Poppe, Tagaro & Dekker, 2006 represented as Calliotropis L. Seguenza, 1903 (Invalid: junior homonym of Solariellopsis de Gregorio, 1886 ; Schepmanotropis is a replacement name)
 * Turcicula Dall, 1881 : synonym of Lischkeia P. Fischer, 1879