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Helminthol."],"published-print":{"date-parts":[[2019,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Two new species of <jats:italic>Diaphorocleidus<\/jats:italic> and one new species of <jats:italic>Rhinoxenoides<\/jats:italic> n. gen. are described from the gills of <jats:italic>Acestrorhynchus falcatus<\/jats:italic> (Bloch) from rivers of north-eastern Par\u00e1, Brazil. <jats:italic>Diaphorocleidus jaymedeloyolai<\/jats:italic> n. sp. is characterized by a male copulatory organ (MCO) possessing three counterclockwise coils; similar anchors with subtriangular superficial roots; a ventral bar with posteromedial projection; and hooks of pairs 1, 4 and 7 approximately three times longer than hook pair 5. <jats:italic>Diaphorocleidus sclerocolpus<\/jats:italic> n. sp. differs from its congeners by a dual-branched accessory piece articulated with the MCO and a sclerotized tubular vagina with a bottle-shaped vestibule. <jats:italic>Rhinoxenoides<\/jats:italic> n. gen. is proposed and is characterized by possessing: MCO sclerotized with clockwise coils; an accessory piece articulated to the base of MCO; a sinistroventral vaginal aperture; ventral anchor with conspicuous roots; dorsal anchor with superficial root five times longer than deep root; and absence of dorsal bar. The proposal of <jats:italic>Rhinoxenoides<\/jats:italic> n. gen. is also supported by its phylogenetic relationship with <jats:italic>Protorhinoxenus prochilodi<\/jats:italic> and species of <jats:italic>Rhinoxenus<\/jats:italic>, using 16 morphological characters, which resulted in the following hypothesis of sister-group relationships: <jats:italic>Rhinoxenoides<\/jats:italic> n. gen. [<jats:italic>Protorhinoxenus<\/jats:italic> (<jats:italic>Rhinoxenus curimatae<\/jats:italic> (<jats:italic>R. nyttus<\/jats:italic> (<jats:italic>R. bulbovaginatus<\/jats:italic> (<jats:italic>R. guianensis, R. piranhus, R. euryxenus<\/jats:italic> (<jats:italic>R. arietinus, R. anaclaudiae<\/jats:italic>)))))].<\/jats:p>","DOI":"10.1017\/s0022149x18000019","type":"journal-article","created":{"date-parts":[[2018,2,7]],"date-time":"2018-02-07T06:10:11Z","timestamp":1517983811000},"page":"208-219","source":"Crossref","is-referenced-by-count":6,"title":["Monogenoidean parasites of <i>Acestrorhynchus falcatus<\/i> (Characiformes: Acestrorhynchidae) from Par\u00e1, Brazil: species of <i>Diaphorocleidus<\/i> and <i>Rhinoxenoides<\/i> n. gen. (Monogenoidea: Dactylogyridae)"],"prefix":"10.1017","volume":"93","author":[{"given":"J.F.","family":"Santos Neto","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.G.S.","family":"Costa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.B.","family":"Soares","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.V.","family":"Domingues","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2018,2,7]]},"reference":[{"key":"S0022149X18000019_ref22","unstructured":"Rasband WS (1997\u2013 2016) ImageJ. US National Institutes of Health, Bethesda, Maryland, USA. 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