• C2-like viruses
• C2likevirus
• Caaporacandona Pinto, Rocha & Martens, 2005
• Caaporacandona iguassuensis Pinto, Rocha & Martens, 2005
• Caaporacandona shornikovi Pinto, Rocha & Martens, 2005
• Caatinganthus H.Rob.
• Caatinganthus harleyi H.Rob.
• Caatinganthus rubropappus (Soar.Nunes) H.Rob.
• Caballasea DeVries, 2018 †
• Caballasea lawtoni (Perrilliat & Vega, 2008) †
• Caballasea segmentata DeVries, 2018 †
• Caballeraxine Lebedev, 1972
• Caballeraxine chainanica (Lebedev, Parukhin & Roitman, 1970) Lebedev, 1972
• Caballeria Bychowsky & Nagibina, 1970
• Caballeria intermedius Lim, 1995
• Caballeria liewi Lim, 1995
• Caballeria pedunculata Bychowsky & Nagibina, 1970
• Caballeria robusta Bychowsky & Nagibina, 1970
• Caballeriana Skrjabin & Guschanskaja, 1959 accepted as Odhnerium Yamaguti, 1934
• Caballeriana lagodovsky Skrjabin & Guschanskaja, 1959 accepted as Odhnerium calyptocotyle (Monticelli, 1893) Yamaguti, 1934
• Caballerocotyla Price, 1960 accepted as Capsala Bosc, 1811
• Caballerocotyla abidjani Bussieras & Baudin-Laurencin, 1970 accepted as Capsala biparasitica (Goto, 1894) Price, 1938
• Caballerocotyla albsmithi Dollfus, 1962 accepted as Capsala albsmithi (Dolfus, 1962) Chisholm & Whittington, 2007
• Caballerocotyla andhraensis (Raju & Rao, 1980) accepted as Capsala notosinense (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla australis Oliva, 1986 accepted as Capsala gregalis (Wagner & Carter, 1967) Chisholm & Whittington, 2007
• Caballerocotyla auxis Yang, Hu & Ding, 2012 accepted as Capsala auxis (Yang, Hu & Ding, 2012)
• Caballerocotyla biparasitica (Goto, 1894) Price, 1938 accepted as Capsala biparasitica (Goto, 1894) Price, 1938
• Caballerocotyla caballeroi (Winter, 1955) Price, 1960 accepted as Capsala caballeroi Winter, 1955
• Caballerocotyla chilensis Pillai & Pillai, 1976 accepted as Capsala notosinense (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla foliacea (Goto, 1894) Price, 1960 accepted as Capsala foliacea (Goto, 1894) Johnston, 1929
• Caballerocotyla gotoi (Yamaguti, 1968) accepted as Capsala magronum (Ishii, 1936) Price, 1938
• Caballerocotyla gouri (Chauhan, 1952) Price, 1960 accepted as Capsala gouri Chauhan, 1951
• Caballerocotyla gregalis Wagner & Carter, 1967 accepted as Capsala gregalis (Wagner & Carter, 1967) Chisholm & Whittington, 2007
• Caballerocotyla katsuwoni (Ishii, 1936) Price, 1960 accepted as Capsala katsuwoni (Ishii, 1936) Price, 1938
• Caballerocotyla klawei Stunkard, 1962 accepted as Nasicola klawei (Stunkard, 1962) Yamaguti, 1968
• Caballerocotyla lenti Mogrovejo & Santos, 2002 accepted as Capsala magronum (Ishii, 1936) Price, 1938
• Caballerocotyla llewelyni Kohn & Justo, 2006 accepted as Capsala katsuwoni (Ishii, 1936) Price, 1938
• Caballerocotyla magronum (Ishii, 1936) Price, 1960 accepted as Capsala magronum (Ishii, 1936) Price, 1938
• Caballerocotyla manteri (Price, 1951) Price, 1960 accepted as Capsala manteri Price, 1951
• Caballerocotyla manteri affinis Mamaev, 1968 accepted as Capsala manteriaffinis Chisholm & Whittington, 2007 accepted as Capsala affinis (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla manteriaffinis Chisholm & Whittington, 2007 accepted as Capsala manteriaffinis Chisholm & Whittington, 2007 accepted as Capsala affinis (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla marielenae Lamothe-Argumedo, 1968 accepted as Capsaloides marielenae (Lamothe-Argumedo, 1968) Lamothe-Argumedo, 1996 accepted as Capsaloides perugiai (Setti, 1898) Price, 1938
• Caballerocotyla megacotyle (von Linstow, 1906) accepted as Capsala megacotyle (von Linstow, 1906) Johnston, 1929
• Caballerocotyla neothunni (Yamaguti, 1968) Oliva, 1986 accepted as Capsala biparasitica (Goto, 1894) Price, 1938
• Caballerocotyla notosinense Mamaev, 1968 accepted as Capsala notosinense (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla nozawae (Goto, 1894) Egorova, 1989 accepted as Tristomella nozawae (Goto, 1894) Price, 1960 accepted as Capsala nozawae (Goto, 1894) Price, 1938
• Caballerocotyla paucispinosa Mamaev, 1968 accepted as Capsala paucispinosa (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla pelamydis (Taschenberg, 1878) Price, 1960 accepted as Capsala pelamydis (Taschenberg, 1878) Johnston, 1929
• Caballerocotyla philippina Velasquez, 1982 accepted as Capsala philippina (Velasquez, 1982)
• Caballerocotyla pseudomagronum Busserias, 1972 accepted as Capsala magronum (Ishii, 1936) Price, 1938
• Caballerocotyla thazardi Pillai & Pillai, 1976 accepted as Capsala manteriaffinis Chisholm & Whittington, 2007 accepted as Capsala affinis (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerocotyla verrucosa Busserias, 1972 accepted as Capsala paucispinosa (Mamaev, 1968) Chisholm & Whittington, 2007
• Caballerodiscinae Sey, 1988 accepted as Schizamphistominae Looss, 1912
• Caballerodiscus Sey, 1988
• Caballerodiscus resupinatus (Caballero y C., 1940)
• Caballerodiscus tabascensis (Caballero y C. & Sokoloff, 1934) Sey, 1988
• Caballeroia Thapar, 1960
• Caballeroia bhavani (Achan, 1956) Deveraj, 1972
• Caballeroia indica Thapar, 1960
• Caballeroia indicum Stiles & Goldberger, 1910 (unaccepted > unavailable name)
• Caballeroiella Lamothe-Argumedo, 1977 accepted as Genarchella Travassos, Artigas & Pereira, 1928
• Caballeroiella isabellae Lamothe-Argumedo, 1977 accepted as Genarchella isabellae (Lamothe-Argumedo, 1977)
• Caballeroiella longissinus Pérez-Ponce de Leion, García-Prieto, Osorio-Sarabia & Léon-Règagnon, 1996 (unaccepted > nomen nudum)
• Caballeroiinae Yamaguti, 1971 accepted as Dadayiinae Fukui, 1929
• Caballeroinae Devaraj, 1972 accepted as Dadayiinae Fukui, 1929
• Caballerolecythus Lamothe-Argumedo, Falcon-Ordaz, Garcia-Prieto & Fernandez-Fernandez, 2005
• Caballerolecythus ibunami Lamothe-Argumedo, Falcon-Ordaz, Garcia-Prieto & Fernandez-Fernandez, 2005
• Caballeronema Margolis, 1977
• Caballeronema pseudoargumentosus Appy & Dadswell, 1978 accepted as Capillospirura pseudoargumentosa (Appy & Dadswell, 1978) Appy & Anderson, 1982
• Caballeronema wardlei (Smedley, 1934) Margolis, 1977
• Caballerorhynchus Salgado-Maldonado, 1977
• Caballerorhynchus lamothei Salgado-Maldonado, 1977
• Caballerotrema Prudhoe, 1960
• Caballerotrema annulatum (Diesing, 1850) Ostrowski de Núñez & Sattman, 2002 accepted as Alobophora annulata (Diesing, 1850) Cajiao-Mora & Bullard in Cajiao-Mora, Brule, Warren, Ksepka, Dutton & Bullard, 2024
• Caballerotrema arapaimense Thatcher, 1980 (uncertain > taxon inquirendum)
• Caballerotrema aruanense Thatcher, 1980
• Caballerotrema brasiliense Prudhoe, 1960
• Caballerotrema brasiliensis Prudhoe, 1960 accepted as Caballerotrema brasiliense Prudhoe, 1960
• Caballerotrema piscicola (Stunkard, 1960) Kostadinova & Gibson, 2001 accepted as Caballerotrema brasiliense Prudhoe, 1960
• Caballerotrematidae Tkach, Kudlai & Kostadinova, 2016
• Caballerotrematoides Madhavi, 1977 accepted as Leiomonorchis Mamaev, 1970
• Caballerotrematoides leiognathi Madhavi, 1977 accepted as Leiomonorchis mamaevi Madhavi, 2008
• Caballerotrematoides secundus Ahmad, 1982 accepted as Leiomonorchis secundus (Ahmad, 1982) Madhavi, 2011
• Caballonema Abuladze, 1937
• Cabaneroceras Kröger & Gutiérrez-Marco, 2019 †
• Cabaneroceras aznari Kröger & Gutiérrez-Marco, 2019 †
• Cabangus Korshunova, Bakken, Grøtan, K. B. Johnson, Lundin & Martynov, 2020
• Cabangus noahi (Pola & Stout, 2008)
• Cabangus regius (Pola & Stout, 2008)
• Cabania Lozouet & Senut, 1985 †
• Cabania guichemerrei Lozouet & Senut, 1985 †
• Cabdio Hamilton, 1822
• Cabdio crassus Lalramliana, Lalronunga & Singh, 2019
• Cabdio jaya (Hamilton, 1822)
• Cabdio morar (Hamilton, 1822)
• Caberea Lamouroux, 1816
• Caberea angusta Hastings, 1943
• Caberea boryi (Audouin, 1826)
• Caberea brevigaleata Canu & Bassler, 1929
• Caberea bursifera Ortmann, 1890