Argentina
| Articulo
<i>Rhinoxenus</i> (Dactylogyridae) parasitizing piranhas (Serrasalmidae) at its southernmost limit of distribution (Paraná River, Argentina), with the description of two new species
dc.creator | Rossin, María Alejandra | |
dc.creator | De Francesco, Pablo Nicolás | |
dc.creator | Irigoitia, Manuel Marcial | |
dc.creator | Scarabotti, Pablo Augusto | |
dc.creator | Taglioretti, Verónica | |
dc.creator | Timi, Juan T. | |
dc.date | 2019-12-02 | |
dc.date | 2021-08-27T18:26:05Z | |
dc.date.accessioned | 2023-07-15T02:51:26Z | |
dc.date.available | 2023-07-15T02:51:26Z | |
dc.identifier | http://sedici.unlp.edu.ar/handle/10915/123680 | |
dc.identifier | issn:1678-2690 | |
dc.identifier | issn:0001-3765 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7463533 | |
dc.description | Three piranha species, Serrasalmus maculatus, S. marginatus and Pygocentrus nattereri, living sympatrically in the lower Parana River (Argentina) were examined searching for nasal monogeneans to know its diversity and distribution. Four species of monogeneans belonging to Rhinoxenus were found parasitizing the nasal cavities. Two new species are described, and new morphological data of 2 previously described species is provided. Rhinoxenus argentinensis n. sp. is characterized by having the male copulatory organ (MCO) as a coiled tube with a reel shaped-base; an elongated accessory piece articulated to base of MCO; a sinistral vagina with a sclerotized vestibule, and a sclerotized cap of the ventral anchor laterally modified forming a triangular expansion. Rhinoxenus paranaensis n. sp. is characterized by having a MCO as a coiled tube with a reel-shaped base; an accessory piece with an elongate proximal portion, a dilated distal portion with digitiform projections articulated to base of MCO; a sinistral vagina with 5-6 cuticular spine-shaped processes, and a sclerotized cap of the ventral anchor modified laterally forming a bilobate expansion. Additionally, multivariate discriminant analyses showed significant morphometric differences in the ventral anchors among Rhinoxenus species parasitizing 'piranhas '. | |
dc.description | Instituto Multidisciplinario de Biología Celular | |
dc.description | Comisión de Investigaciones Científicas de la provincia de Buenos Aires | |
dc.format | application/pdf | |
dc.language | es | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
dc.subject | Biología | |
dc.subject | Piranhas | |
dc.subject | Nasal parasites | |
dc.subject | Rhinoxenus spp. | |
dc.subject | South American rivers | |
dc.title | <i>Rhinoxenus</i> (Dactylogyridae) parasitizing piranhas (Serrasalmidae) at its southernmost limit of distribution (Paraná River, Argentina), with the description of two new species | |
dc.type | Articulo | |
dc.type | Articulo |