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      New species of Paracolpenteron n. gen. and Ancyrocephalus (Monogenea, Dactylogyridae) inhabiting the urinary bladder and gills of the Maya needlefish Strongylura hubbsi (Beloniformes, Belonidae) from Chiapas, Mexico Translated title: Nouvelles espèces de Paracolpenteron n. gen. et Ancyrocephalus (Monogenea, Dactylogyridae) habitant la vessie urinaire et les branchies du poisson Strongylura hubbsi (Beloniformes, Belonidae) du Chiapas, au Mexique

      research-article
      1 , * , 2 , 3
      Parasite
      EDP Sciences
      Ancyrocephalus, Paracolpenteron n. gen., n. sp., freshwater fish, biogeography

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          Abstract

          Parasitological examination of the maya needlefish Strongylura hubbsi Collette (Belonidae) from the Rio Lacantún basin in the Montes Azules Biosphere Reserve, Chiapas, Mexico showed that specimens were parasitized by two monogenean species in two different sites: Paracolpenteron hubbsii n. gen., n. sp in the urinary bladder and Ancyrocephalus chiapanensis n. sp in the gill lamellae. Paracolpenteron hubbsii differs from other dactylogyrid species without a haptoral anchor/bar complex infecting the urinary systems, gills and nasal cavities by the general morphology of hooks, a dextral vaginal opening, a tubular male copulatory organ comprising a base from which a coiled shaft arises in counterclockwise direction, and an unarticulated Y-shaped accessory piece. Ancyrocephalus chiapanensis n. sp. resembles Ancyrocephalus cornutus William & Rogers, 1972 from the gills of Strongylura marina from Florida from which it differs in possessing a twisted tube of the male copulatory organ (curved in A. cornutus), ventral bar with cavities on the ends (cavities absent in A. cornutus) and by the size of the ventral (length 31–34 μm vs. 24–27 μm in A. cornutus) and dorsal (length 25–28 μm vs. 18–22 μm in A. cornutus) anchors. These new monogeneans are described herein and their biogeography is briefly discussed based on the previous phylogenetic hypotheses concerning the host family.

          Translated abstract

          L’examen parasitologique du poisson Strongylura hubbsi Collette (Belonidae) du bassin du Rio Lacantún dans la réserve de biosphère de Montes Azules, Chiapas, Mexique, a révélé qu’il était parasité par deux espèces de monogènes dans deux sites différents : Paracolpenteron hubbsii n. gen., n. sp dans la vessie et Ancyrocephalus chiapanensis n. sp sur les lamelles branchiales. Paracolpenteron hubbsii diffère des autres espèces de Dactylogyridae sans complexe ancre / barre haptorale qui infectent les systèmes urinaires, les branchies et les cavités nasales par la morphologie générale des crochets, une ouverture vaginale dextre, un organe copulateur mâle tubulaire comprenant une base à partir de laquelle se forme une tige enroulée dans le sens antihoraire et une pièce accessoire non articulée en forme de Y. Ancyrocephalus chiapanensis ressemble à Ancyrocephalus cornutus n. sp. William & Rogers, 1972 des branchies de Strongylura marina de Floride, dont il diffère par la possession d’un tube torsadé de l’organe copulateur mâle (incurvé chez A. cornutus), une barre ventrale avec des cavités aux extrémités (cavités absentes chez A. cornutus) et par la taille des ancres ventrale (longueur 31–34 μm vs. 24–27 chez A. cornutus) et dorsale (longueur 25–28 μm vs. 18–22 chez A. cornutus). Ces nouveaux monogènes sont décrits ici et leur biogéographie est brièvement discutée sur la base d’hypothèses phylogénétiques antérieures concernant la famille hôte.

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          Most cited references34

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          Phylogenetic Relationships of New World Needlefishes (Teleostei: Belonidae) and the Biogeography of Transitions between Marine and Freshwater Habitats

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            Monogeneans in introduced and native cichlids in México: evidence for transfer.

            We examined 2 cichlid fish species native to México, Cichlasoma callolepis and C. fenestratum, and 2 introduced African cichlids, Oreochromis aureus and O. niloticus, from 3 localities in southeastern México for monogeneans. Six monogenean species infected the African cichlids: Cichlidogyrus haplochromii, C. dossoui, C. longicornis longicornis, C. sclerosus, C. tilapiae, and Enterogyrus malmbergi. We found all these parasite species, except C. haplochromii and C. dossoui, on the native C. fenestratum and C. callolepis. Prevalences of Cichlidogyrus spp. were 3-10% and abundances ranged from 0.03 +/- 0.2 to 0.1 +/- 0.3 for native cichlids. We only recovered a single E. malmbergi from 1 C. callolepis. We found Sciadicleithrum bravohollisae, a monogenean of native Cichlasoma spp., on the gills of the introduced O. aureus from Lake Catemaco (prevalence 3%, abundance 0.03 +/- 0.2). Although prevalence and abundance in atypical hosts were fairly low, the present findings provide evidence of monogenean transfer from African to American cichlids and vice versa. This is the first record of exotic monogeneans in the genus Cichlidogyrus and Enterogyrus infecting native American cichlid fish. It is also the first record from southeastern México of a native American monogenean infecting introduced African cichlids.
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              Checklist of the monogenea (Platyhelminthes) parasitic in mexican aquatic vertebrates

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                Author and article information

                Journal
                Parasite
                Parasite
                parasite
                Parasite
                EDP Sciences
                1252-607X
                1776-1042
                2018
                16 November 2018
                : 25
                : ( publisher-idID: parasite/2018/01 )
                : 55
                Affiliations
                [1 ] Instituto de Ecología Pesquerías y Oceanografía del Golfo de México (EPOMEX), Universidad Autónoma de Campeche Av. Héroe de Nacozari No. 480 CP 24029 San Francisco de Campeche Campeche México
                [2 ] Facultad de Ciencias Biológicas y Centro de Investigaciones Biológicas, Laboratorio de Parasitología de Animales Silvestres, Universidad Autónoma del Estado de Morelos, Avenida Universidad No. 1001 Colonia Chamilpa 62209 Cuernavaca Morelos México
                [3 ] Laboratorio de Producción Acuícola, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León (UANL) Ex-Hacienda el Canadá CP. 66050 México
                Author notes
                [* ]Corresponding author: efmendoz@ 123456uacam.mx
                Article
                parasite180062 10.1051/parasite/2018053
                10.1051/parasite/2018053
                6238653
                30444487
                b2b4f867-ee58-4b18-8274-b8e0b8bde49a
                © E.F. Mendoza-Franco et al., published by EDP Sciences, 2018

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 18 April 2018
                : 29 October 2018
                Page count
                Figures: 2, Tables: 0, Equations: 0, References: 36, Pages: 8
                Categories
                Research Article

                ancyrocephalus,paracolpenteron n. gen., n. sp.,freshwater fish,biogeography

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