Opecoelidae familyasına bağlı cinsler (2023):[2]
- Alloanomalotrema
- Allopodocotyle - Pritchard, 1966
- Allostenoperca - Baeva, 1968
- Anomalotrema
- Apertile - Overstreet, 1969
- Apopodocotyle - Pritchard, 1966
- Cainocreadium - Nicoll, 1909
- Crowcrocaecum
- Dactylostomum - Wollcock, 1935
- Decemtestis
- Eurycreadium - Manter, 1934
- Genitocotyle - Park, 1937
- Hamacreadium - Linton, 1910
- Helicometra - Odhner, 1902
- Helicometrina - Linton, 1910
- Manteriella - Yamaguti, 1958
- Neohelicometra
- Neonotoporus - Srivastava, 1942
- Neopecoelus - Manter, 1947
- Neopodocotyloides - Pritchard, 1966
- Nezpercella - Schell, 1974
- Nicolla - Wisniewski, 1934
- Opecoelina - Manter, 1934
- Opecoeloides
- Opecoelus
- Opegaster - Ozaki, 1928
- Opercoelus - Ozaki, 1925
- Ozaki
- Pellamyzon - Montgomery, 1957
- Plagioporus - Stafford, 1904
- Podocotyle - Dujardin, 1845
- Pseudopecoeloides - Yamaguti, 1940
- Pseudopecoelus - Von Wicklen, 1946
- Stenoperca - Manter, 1933