The Capsalidae is a family of monopisthocotylean monogeneans, which includes about 200 species.
The monophyly of the Capsalidae is supported by possession of accessory sclerites in the haptor (the posterior attachment organ), and was confirmed by molecular phylogeny.
Capsalids are parasite on various organs of marine fish (teleosts and elasmobranchs), including skin, fins and gills. Several capsalid species, such a Neobenedenia spp. are pathogenic, especially on maricultured fish.
Genera as recognized in WorMs are listed below. Recent molecular analyses have shown that several genera, which were defined on morphological characters, are not monophyletic.
Menziesia and Nitzschia have their equivalent in the botanical nomenclature: Menziesia (a flowering plant) and Nitzschia (a diatom).
Allobenedenia Yamaguti, 1963Alloencotyllabe Khalil & Abdul-Salam, 1988Allomegalocotyla Yamaguti, 1963Allometabenedeniella Velasquez, 1982Ancyrocotyle Parona & Monticelli, 1903Benedenia Diesing, 1858Benedeniella Johnston, 1929Branchobdella Kearn, Whittington & Evans-Gowing, 2007Calicobenedenia Kritsky & Fennessy, 1999Capsala Bosc, 1811Capsaloides Price, 1936Dioncopseudobenedenia Yamaguti, 1965Encotyllabe Diesing, 1850Entobdella Blainville in Lamarck, 1818Interniloculus Suriano & Beverley-Burton, 1979Lagenivaginopseudobenedenia Yamaguti, 1966Listrocephalos Bullard, Payne & Braswell, 2004Macrophyllida Johnston, 1929Mediavagina Lawler & Hargis, 1968Megalobenedenia Egorova, 1994Megalocotyle Folda, 1928Menziesia Gibson, 1976Metabenedeniella Yamaguti, 1958Nasicola Yamaguti, 1968Neobenedenia Yamaguti, 1963Neobenedeniella Yamaguti, 1963Neoentobdella Kearn & Whittington, 2005Nitzschia Baer, 1826Oligoncobenedenia Yamaguti, 1965Pseudoallobenedenia Yamaguti, 1966Pseudobenedenia Johnston, 1931Pseudobenedeniella Timofeeva, Gaevskaja & Kovaliova, 1987Pseudobenedenoides Szidat, 1969Pseudoentobdella Yamaguti, 1963Pseudomegalocotyla Yamaguti, 1963Pseudonitzschia Yamaguti, 1968Sessilorbis Mamaev, 1970Sprostonia Bychowsky, 1957Sprostoniella Bychowsky & Nagibina, 1967Tetrasepta Suriano, 1975Trilobiodiscus Bychowsky & Nagibina, 1967Trimusculotrema Whittington & Barton, 1990Tristoma Cuvier, 1817Tristomella Guiart, 1938Trochopella Euzet & Trilles, 1962Trochopus Diesing, 1850
