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Two new species of Annulotrema (Monogenea: Dactylogyridae) from Hydrocynus vittatus (Characiformes: Alestidae) in Lake Kariba, Zimbabwe

Published online by Cambridge University Press:  11 July 2017

M.L. Kičinjaová ,
M. Barson ,
M. Gelnar  and
E. Řehulková
M.L. Kičinjaová*
Affiliation:
Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
M. Barson
Affiliation:
Department of Biological Sciences, University of Zimbabwe, PO Box MP167, Mt. Pleasant Harare, Zimbabwe
M. Gelnar
Affiliation:
Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
E. Řehulková
Affiliation:
Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
*
*Fax: +420-5-41211214 E-mail: lujzika@mail.muni.cz
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Abstract

Two new and one known species of Annulotrema Paperna & Thurston, 1969 are reported from the gills of the tigerfish Hydrocynus vittatus Castelnau, 1861, collected in Lake Kariba, Zimbabwe. The new species, Annulotrema pseudonili n. sp. and A. bracteatum n. sp., are described and distinguished mainly on the basis of features of the male copulatory organ (MCO). Annulotrema pseudonili n. sp. most closely resembles A. nili Paperna, 1973, but differs from it by possessing a more delicate MCO with a thin-walled base without a fibrous distal part. Annulotrema bracteatum n. sp. is most similar to Annulotrema ruahae Paperna, 1973, from which it differs by having an MCO composed of a longer copulatory tube and a leaf-shaped accessory piece enveloping the distal part of the tube. The presence of Annulotrema pikoides Guégan, Lambert & Birgi, 1988 on H. vittatus in Zimbabwe represents a new locality record for this parasite.

Type
Research Paper
Information
Journal of Helminthology , Volume 92 , Issue 4 , July 2018 , pp. 467 - 476
Copyright
Copyright © Cambridge University Press 2017 

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