The Capulidae, the cap snails or cap shells, are a taxonomic family of limpet-like sea snails, marine gastropod molluscs in the clade Littorinimorpha. Capulidae is the only family in the superfamily Capuloidea. According to taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Capulidae has no subfamilies. The name Trichotropidae was previously used for this family, but this name is invalid, as it is a junior synonym. Genera Genera within the family Capulidae include: Ariadnaria Habe, 1961 † Blackdownia Kollmann, 1976 Capulus Montfort, 1810 Cerithioderma Conrad, 1860 (?) Ciliatotropis Golikov, 1986 Discotrichoconcha Powell, 1951 Echinospira Girotti, 1970 Hyalorisia Dall, 1889 Icuncula Iredale, 1924 Krebsia Montfort, 1810 (?) Lippistes Montfort, 1810 (?) Neoiphinoe Habe, 1978 Malluvium Melvill, 1906 (?) Rufodardanula Ponder, 1965 (?) Separatista Gray, 1847 Torellia Lovén in Jeffreys, 1867 Trichamathina Habe, 1962 Trichosirius Finlay, 1926 (?) Trichotropis Broderip and G. B. Sowerby I, 1829 Turritropis Habe, 1961 Verticosta S.-I Huang & M.-H. Lin, 2020 Zelippistes Finlay, 1927 (?) Genera brought into synonymy Actita Fischer von Waldheim, 1823: synonym of Capulus Montfort, 1810 Antitrichotropis Powell, 1951: synonym of Torellia Jeffreys, 1867 Brocchia Bronn, 1828: synonym of Capulus Montfort, 1810 Capulonix Iredale, 1929: synonym of Capulus Montfort, 1810 Iphinoe H. Adams & A. Adams, 1856 : synonym of Neoiphinoe Habe, 1978 Neoconcha E.A. Smith, 1907: synonym of Torellia (Neoconcha) E.A. Smith, 1907 Ovotropis Egorov & Alexeyev, 1998: synonym of Neoiphinoe Habe, 1978 Pileopsis Lamarck, 1822 : synonym of Capulus Montfort, 1810 Trichoconcha E.A. Smith, 1907: synonym of Torellia Jeffreys, 1867 References Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp Discover Life External links image of Capulus dilatatus Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642