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A morphological and molecular study of Clinostomid metacercariae from African fish with a redescription of Clinostomum tilapiae

Published online by Cambridge University Press:  27 June 2017

Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, BO, Italy
Department of Biology, University of Puerto Rico, Box 9000, Mayagüez 00681-9000, Puerto Rico
Department of Zoology and Environmental Biology, Michael Okpara University of Agriculture, Umudike Abia State, Nigeria
Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, BO, Italy
Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, BO, Italy
*Corresponding author: Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, BO, Italy. E-mail:


The genus Clinostomum Leidy, 1856 (Digenea: Clinostomidae) has been reported in all ecozones of the world and a clear separation between the species of the ‘Old World’ and ‘New World’ has been recognized based on molecular studies. Recent works on Afrotropical species include redescriptions of C. cutaneum and C. phalacrocoracis, while C. tilapiae has yet to be studied using modern taxonomic approaches. In the present research, morphological redescription of C. tilapiae metacercariae from a new host, Synodontis batensoda sampled at Anambra River Basin, Nigeria, together with molecular analysis of nuclear internal transcribed spacer rDNA and cytochrome c oxidase 1 mtDNA are reported. We also provide morphological and molecular data from four further putative species of Clinostomum (morphotypes 1–4) from different areas of Africa, as well as the first report of C. phalacrocoracis in South Africa.

Research Article
Copyright © Cambridge University Press 2017 

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