Absonifibula bychowskyi Lawler & Overstreet, 1976 (additional source)
Acanthocotyle borealis Brinkmann, 1940 accepted as Acanthocotyle verrilli Goto, 1899 (source of synonymy)
Amphibdella flavolineata MacCallum, 1916 (additional source)
Amphibdelloides maccallumi (Johnston & Tiegs, 1922) Price, 1937 (additional source)
Ancyrocephalus parvus Linton, 1940 accepted as Hemirhamphiculus parvus (Linton, 1940) Kritsky & Bakenhaster, 2024 (additional source)
Anthocotyle americanus MacCallum, 1916 accepted as Anthocotyle americana MacCallum, 1916 (additional source)
Axine hyporhampi Price, 1962 (additional source)
Axinoides gracilis (Linton, 1940) Sproston, 1946 accepted as Nudaciraxine gracilis (Linton, 1940) Price, 1962 (additional source)
Benedenia posterocolpa Hargis, 1955 accepted as Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963 accepted as Parabenedeniella posterocolpa (Hargis, 1955) Brule & Bullard in Brule, Warren & Bullard, 2026 (additional source)
Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963 accepted as Parabenedeniella posterocolpa (Hargis, 1955) Brule & Bullard in Brule, Warren & Bullard, 2026 (additional source)
Bicotylophora trachinoti (MacCallum, 1921) Price, 1936 (additional source)
Bothitrema bothi (MacCallum, 1913) Price, 1936 (additional source)
Caballerocotyla manteri (Price, 1951) Price, 1960 accepted as Capsala manteri Price, 1951 (additional source)
Cadenatia polytestis Euzet & Maillard, 1967 accepted as Neodermophthirius harkemai Price, 1963 (source of synonymy)
Capsala manteri Price, 1951 (additional source)
Capsala martinieri Bosc, 1811 (additional source)
Capsaloides cornutus (Verrill, 1875) Price, 1938 (additional source)
Cathariotrema selachii (MacCallum, 1916) Johnston & Tiegs, 1922 (additional source)
Cemocotyle carangis (MacCallum, 1913) Sproston, 1946 (additional source)
Cemocotyle noveboracensis Price, 1962 (additional source)
Choricotyle aspinachorda Hargis, 1955 (additional source)
Choricotyle louisianensis Hargis, 1955 accepted as Hargicotyle louisianensis (Hargis, 1955) Mamaev, 1972 (additional source)
Clupeocotyle brevoortia Hargis, 1955 (additional source)
Cynoscionicola heteracantha (Manter, 1938) Price, 1962 (additional source)
Dasybatotrema dasybatis (MacCallum, 1916) Price, 1938 (additional source)
Dermophthirius carcharhini MacCallum, 1926 (additional source)
Dermophthirius penneri Benz, 1987 (additional source)
Diclidophora denticulata (Olsson, 1876) Price, 1943 (additional source)
Diclidophora maccallumi (Price, 1943) Sproston, 1946 (additional source)
Dionchus agassizi Goto, 1899 (additional source)
Dionchus remorae (MacCallum, 1916) Price, 1938 (additional source)
Diplectanum bilobatum Hargis, 1955 accepted as Cynoscionella bilobatum (Hargis, 1955) Chero, Cruces, Sáez & Luque, 2022 accepted as Cynoscionella bilobata (Hargis, 1955) Chero, Cruces, Sáez & Luque, 2022 (additional source)
Empruthotrema raiae (MacCallum, 1916) Johnston & Tiegs, 1922 (additional source)
Entobdella curvunca Ronald, 1957 accepted as Entobdella hippoglossi (Müller, 1776) Blainville, 1818 (source of synonymy)
Erpocotyle maccallumi (Price, 1942) Yamaguti, 1963 (additional source)
Erpocotyle macrohystera Price, 1942 (additional source)
Erpocotyle microstoma (Brooks, 1934) Yamaguti, 1963 (additional source)
Erpocotyle sphyrnae (MacCallum, 1931) Price, 1942 (additional source)
Fundulotrema prolongis (Hargis, 1955) Kritsky & Thatcher, 1977 accepted as Swingleus prolongis (Hargis, 1955) Boeger & de Buron in Ciccheto, Razzolini, de Buron & Boeger, 2025 (additional source)
Gotocotyla acanthophallus (MacCallum & MacCallum, 1913) Yamaguti, 1963 accepted as Gotocotyla acanthura (Parona & Perugia, 1896) Meserve, 1938 (additional source)
Grubea cochlear Diesing, 1858 (additional source)
Grubea pneumatophori Price, 1961 accepted as Grubea cochlear Diesing, 1858 (source of synonymy)
Gyrodactylus stephanus Mueller, 1937 (additional source)
Hargisia bairdiella (Hargis, 1956) Yamguti, 1963 (additional source)
Heterocotyle minima (MacCallum, 1916) Price, 1938 (additional source)
Hexabothrium (incertae sedis) musteli (MacCallum, 1931) Price, 1942 (additional source)
Loimopapillosum dasyatis Hargis, 1955 (additional source)
Loimos salpinggoides MacCallum, 1917 (additional source)
Loimos scoliodoni (Manter, 1938) Manter, 1944 (additional source)
Mazocraeoides georgei Price, 1936 (additional source)
Mazocraeoides hargisi Price, 1961 (additional source)
Mazocraeoides olentangiensis Sroufe, 1958 (additional source)
Microbothrium apiculatum Olsson, 1869 (additional source)
Monocotyle diademalis Hargis, 1955 (additional source)
Monocotyle pricei Pearse, 1949 (additional source)
Neodermophthirius harkemai Price, 1963 (additional source)
Neoheterobothrium affine (Linton, 1898) Price, 1943 (additional source)
Neoheterobothrium cynoscioni (MacCallum, 1917) Price, 1943 (additional source)
Nitzschia superba MacCallum, 1921 accepted as Nitzschia sturionis (Abildgaard, 1794) Krøyer, 1852 (additional source)
Nudaciraxine gracilis (Linton, 1940) Price, 1962 (additional source)
Orbocotyle prionoti (MacCallum, 1917) Euzet & Suriano, 1975 (additional source)
Pedocotyle minima Hargis, 1955 (additional source)
Pedocotyle morone (MacCallum, 1913) MacCallum, 1913 (additional source)
Protancyrocephaloides liopsettae Burn, 1978 (additional source)
Pseudacanthocotyla verrilli (Goto, 1899) Yamaguti, 1963 accepted as Acanthocotyle verrilli Goto, 1899 (additional source)
Pseudotagia cupida (Hargis, 1956) Yamaguti, 1963 (additional source)
Rajonchocotyle laevis Price, 1942 (additional source)
Rhamnocercus bairdiella Hargis, 1955 (additional source)
Rhamnocercus stichospinus Seamster & Monaco, 1956 accepted as Rhamnocercoides stichospinus (Seamster & Monaco, 1956) Domingues & Boeger, 2006 accepted as Pseudorhamnocercoides stichospinus (Seamster & Monaco, 1956) Chero, Cruces, Sáez, Iannacone & Luque, 2017 (additional source)
Squalonchocotyle abbreviata (Olsson, 1876) Cerfontaine, 1899 (additional source)
Squalonchocotyle squali MacCallum, 1931 (additional source)
Tricotyla molae (Blanchard, 1847) Guiart, 1938 accepted as Capsala martinieri Bosc, 1811 (additional source)
Trionchus dasybatis MacCallum, 1916 accepted as Heterocotyle minima (MacCallum, 1916) Price, 1938 (additional source)
Tristoma coccineum Cuvier, 1817 (additional source)
Tristoma integrum Diesing, 1850 (additional source)
Tristomella laevis (Verrill, 1875) Guiart, 1938 accepted as Capsala laevis (Verrill, 1875) Johnston, 1929 (additional source)
Tristomella onchidiocotyle (Setti, 1899) Guiart, 1938 accepted as Capsala onchidiocotyle (Setti, 1899) Johnston, 1929 (additional source)

 Taxonomy

 for Cadenatia polytestis Euzet & Maillard, 1967

Regarded as a synonym of Neodermaphthirius harkemai Price, 1963 by Hendrix (1994) - not confirmed or checked. [details]