Journal
JOURNAL OF HELMINTHOLOGY
Volume 94, Issue -, Pages -Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0022149X19000737
Keywords
Acanthocephala; Eoacanthocephala; freshwater fish; taxonomy; 28S rDNA; phylogeny; North Africa
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Funding
- Faculty of Natural and Life Sciences, University of Mohamed Cherif Messaadia of Algeria [CNEPRU: 410120150001]
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences [RVO: 60077344]
- Czech Science Foundation [P505/12/G112]
- Grant Agency VEGA [2/0159/16]
- Agencia Nacional de Promocion Cientifica y Tecnologica of Argentina [2017-3232]
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Acanthogyrus (Acanthosentis) maroccanus (Dollfus, 1951), an insufficiently described quadrigyrid acanthocephalan of cyprinid fishes from Northwest Africa, is redescribed based on recently collected specimens from the Algerian barb Luciobarbus callensis (Valenciennes) in Algeria. Newly observed morphological features for A. (A.) maroccanus include the arrangement of proboscis hooks (not in regular circles), the male reproductive structures extending into the copulatory bursa and the presence of a para-receptacle structure and vaginal sleeve. The mechanism of copulation of this acanthocephalan is described based on several copulating pairs. The phylogenetic position of A. (A.) maroccanus within Eoacanthocephala was assessed based on partial 28S rDNA sequences. Maximum likelihood and Bayesian inference analyses placed A. (A.) maroccanus in a clade with Palliolisentis (Demidueterospinus) ophiocephalus (Thapar, 1931), both species included in the Quadrigyridae, the only family within the Gyracanthocephala.
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