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      Recent Studies on Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), in Prochilodus lineatus Valenciennes, 1836, from Volta Grande Reservoir, MG, Brazil Translated title: Estudos recentes sobre Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), em Prochilodus lineatus Valenciennes, 1836, do Reservatório de Volta Grande, MG, Brasil

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          Abstract

          The present work described helminth parasites of curimbatá, Prochilodus lineatus Valenciennes, 1836 from Volta Grande Reservoir, MG, Brazil. Eighteen fishes with average 46.7 ± 1.1 cm length and 1,674.8 ± 75.6 g weight were collected. Of the analysed fishes, 15 were parasitized with acanthocephalans in the intestine, showing a prevalence of 83.3%. The helminth was identified as Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae). It differs from other species in dimension of characters and morphology. From the original description of N. curemai, it differs from the biggest dimension of testis, elongated cement gland, nucleated lemnisci, eggs size, larger proboscis hooks length in the middle and in the third circle in males and larger hooks in the anterior circle in females. A smaller percentage occupied by the reproductive system in female trunk was reported. The observation of paratypes of N. curemai of Noronha (1973) showed a great similarity with those of the present work. This fact complements the helminth description from elsewhere.

          Translated abstract

          O presente trabalho estudou a helmintofauna do curimbatá, Prochilodus lineatus Valenciennes, 1836, do reservatório de Volta Grande, MG, Brasil. Foram analisados 18 peixes com comprimento médio de 46,7 ± 1,1 cm e peso médio de 1.674,8 ± 75,6 g, sendo que 15 apresentaram acantocéfalos no intestino com prevalência de 83,3%. O helminto foi identificado como Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), que diferiu das outras espécies descritas pelas dimensões dos caracteres e pela morfologia. Da descrição original de N. curemai difere pelas maiores dimensões dos testículos, pela glândula de cimento alongada, pela presença de núcleos nos lemniscos, pelas dimensões dos ovos e pelos maiores ganchos da probóscide presentes na segunda e na terceira fileiras nos machos e na primeira fileira nas fêmeas. Foi observada menor porcentagem ocupada pelo sistema reprodutivo em relação ao tronco da fêmea. A observação dos parátipos de N. curemai de Noronha (1973) mostrou grande semelhança com os do presente trabalho. Este fato complementa a descrição do helminto em outra localidade.

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          Most cited references17

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          Amazon fish parasites

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            Key to the families and subfamilies of Acanthocephala, with the erection of a new class (Polyacanthocephala) and a new order (Polyacanthorhynchida).

            O Amin (1987)
            A key to the classes, orders, families, and subfamilies of Acanthocephala based on the Meyer-Van Cleave system as presented by Amin (1985) is provided. A new class (Polyacanthocephala) and a new order (Polyacanthorhynchida) are erected to accommodate members of the monogeneric family Polyacanthorhynchidae Golvan, 1956.
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              Nomenclature of the acanthocephala

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                Author and article information

                Journal
                rbbio
                Revista Brasileira de Biologia
                Rev. Bras. Biol.
                Instituto Internacional de Ecologia (São Carlos, SP, Brazil )
                0034-7108
                November 2000
                : 60
                : 4
                : 673-682
                Affiliations
                [01] Jaboticabal SP orgnameUniversidade Estadual Paulista orgdiv1Centro de Aqüicultura orgdiv2Laboratório de Patologia de Organismos Aquáticos Brazil
                [02] Jaboticabal SP orgnameUniversidade Estadual Paulista orgdiv1FCAV orgdiv2Departamento de Patologia Veterinária Brazil
                Article
                S0034-71082000000400019 S0034-7108(00)06000419
                3fa8bbbe-bd35-4184-9c26-ffae51833f2f

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 08 September 1999
                : 12 January 2000
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 17, Pages: 10
                Product

                SciELO Brazil

                Self URI: Full text available only in PDF format (EN)
                Categories
                Zoology

                Animal science & Zoology
                Brazil,Minas Gerais,Prochilodus lineatus,Neoechinorhynchus curemai,Acanthocephala,Brasil

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