Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar Author Pariselle, Antoine Institut de Recherche pour le Développement, Laboratoire d’écologie et de systématique, Centre de Belair, BP 1386, 18524 Dakar (Sénégal) antoine. pariselle @ ird. fr pariselle@ird.fr Author Euzet, Louis Station méditerranéenne de l’Environnement littoral, Université Montpellier II, 1 Quai de la Daurade, F- 34200 Sète (France) euzet @ univ-montp 2. fr text Zoosystema 2009 2009-12-31 31 4 849 898 http://www.bioone.org/doi/abs/10.5252/z2009n4a6 journal article 8061 10.5252/z2009n4a6 d4ef2df1-7e15-49c7-9c1b-a2f1bf23af38 1638-9387 4520413 Onchobdella pterigyalis Paperna, 1968 Onchobdella pterigyalis Paperna, 1968: 203-205 , figs 3c, e, 4a, b. TYPE MATERIAL. — Holotype : BMNH 1968.9.4.1. TYPE HOST. — Hemichromis bimaculatus Gill, 1862 . TYPE LOCALITY. — Nunguia dam, East of Accra, Ghana . SITE. — Fins. ADDITIONAL SITE. — Gills. ADDITIONAL LOCALITY. — Mamahuma stream, East of Accra, Ghana REMARKS Dossou (1973) , in his PhD thesis on the fish parasites from South Benin , re-described O. pterigyalis (as O. pterygialis ) and indicated a new host: Pelmatochromis caudifasciatus Boulenger, 1913 (the species determination of this new host remains uncertain; in fact, it has been synonymised with Parananochromis caudifasciatus (Boulenger, 1913) which is limited to Southern Cameroon , the Northern part of the Congo and the Rio Muni ; this distribution excludes the Benin Rivers).