A new genus and four new species of dactylogyrids (Monogenea), gill parasites of pimelodid catfishes (Siluriformes: Pimelodidae) in South America and the reassignment of Urocleidoides megorchis Mizelle et Kritsky, 1969

0518609 - BC 2020 RIV CZ eng J - Článek v odborném periodiku
Acosta, Aline Angelina - Mendoza-Palmero, Carlos Alonso - Da Silva, R.J. - Scholz, Tomáš
A new genus and four new species of dactylogyrids (Monogenea), gill parasites of pimelodid catfishes (Siluriformes: Pimelodidae) in South America and the reassignment of Urocleidoides megorchis Mizelle et Kritsky, 1969.
Folia Parasitologica. Roč. 66, MAR 28 2019 (2019), č. článku 004. ISSN 0015-5683. E-ISSN 1803-6465
Grant CEP: GA ČR(CZ) GBP505/12/G112
Institucionální podpora: RVO:60077344
Klíčová slova: neotropical monogenoidea * nasal cavities * mendoza-franco * ancyrocephalinae * phylogenies * teleostei * thatcher * fishes * scholz * river * Ancyrocephalinae * morphology * integrative taxonomy * 28S rRNA * Sorubiminae * Neotropical region
Obor OECD: Zoology
Impakt faktor: 1.648, rok: 2019
Způsob publikování: Open access
https://folia.paru.cas.cz/pdfs/fol/2019/01/04.pdf

Nanayella gen. n. is proposed to accommodate four new species of dactylogyrid monogeneans found on the gills of two species of pimelodid catfishes (Siluriformes) from the Amazon River basin in Peru and the Upper Parana River basin in Brazil. Nanayella gen. n. is mainly characterised by the presence of modified hook pairs 5 and 6, which have a slender shank with slightly enlarged base, inconspicuous thumb, and straight point. Nanayella aculeatrium gen. n. et sp. n. (type species) from Sorubim lima (Bloch et Schneider) (type host) differs from its congeners mainly by possessing seven sclerotised spines on one side of circular ornamentation of the vaginal atrium. Nanayella fluctuatrium gen. n. et sp. n. is characterised by the presence of sclerotised undulations surrounding the circular ornamentation of the vaginal atrium. Nanayella amplofalcis gen. n. et sp. n. is typified by possessing hook pairs 1 and 2 with a robust, wide shank and a round, weakly sclerotised subunit at the base. Nanayella processusclavis gen. n. et sp. n. differs from congeners by the presence of a conspicuous posterior medial process on the dorsal bar. Urocleidoides megorchis Mizelle et Kritsky, 1969 described from the gills of S. lima in Brazil is transferred to Nanayella gen. n. as Nanayella megorchis comb. n. based on morphological and molecular evidence. Analyses of partial sequences of the 28S rRNA gene revealed all five species of the new genus to form a monophyletic clade within a bigger clade comprised of dactylogyrids of South American pimelodids.
Trvalý link: http://hdl.handle.net/11104/0303952