Species
*'' Pachycreadium angolense'' Aleshkina & Gaevskaya, 1985Aleshkina, L. D. & Gaevskaya, A. V. (1985). Trematodes of fish from the Atlantic coast of Africa. ''Nauchnye Doklady Vysshei Shkoly, Biologicheskie Nauki'', 3, 35–40. *'' Pachycreadium carnosum'' (Rudolphi, 1819) Cortini & Ferretti, 1959Rudolphi, C. A. (1819). ''Entozoorum Synopsis cui Accedunt Mantissa Duplex et Indices Locupletissimi''. Berolini: Sumtibus Augusti Rücker.Cortini, M. & Ferretti, G. (1959). ''Pachycreadium carnosum'' (Rudolphi, 1819), n. comb., trematode parassita di ''Dentex vulgaris''. ''Parassitologia'', 1, 183–193. *'' Pachycreadium gastrocotylum'' (Manter, 1940) Manter, 1954Manter, H. W. (1940). Digenetic trematodes of fishes from the Galapagos Islands and the neighboring Pacific. ''Reports on the Collections Obtained by Allan Hancock Pacific Expeditions of Velero III off the Coast of Mexico, Central America, South America, and Galapagos Islands in 1932, in 1933, in 1934, in 1935, in 1936, in 1937, and in 1938'', 2(14), 329–496. *'' Pachycreadium lerneri'' Sogandares-Bernal, 1959Sogandares-Bernal, F. (1959). Digenetic trematodes of marine fishes from the Gulf of Panama and Bimini, British West Indies. ''Tulane Studies in Zoology'', 7(3), 69–117. *'' Pachycreadium lethrini'' Hassanine, 2006Hassanine, R. M. E. (2006). Trematodes from Red Sea fishes: ''Pachycreadium lethrini'' sp. nov. (Opecoelidae Ozaki, 1925) and ''Pseudometadena aegyptensis'' sp. nov. (Cryptogonimidae Ward, 1917), with a review of their genera. ''Acta Parasitologica'', 51(3), 176–181.References
Opecoelidae Plagiorchiida genera {{trematoda-stub