Potamotrygon amandae Loboda, Carvalho 2013
Creators: name: Ota, Renata Rúbia
name: Deprá, Gabriel de Carvalho
name: Graça, Weferson Júnio da
name: Pavanelli, Carla Simone
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Potamotrygonidae
Potamotrygon
Potamotrygon amandae

description: <i>Potamotrygon amandae</i> Loboda, Carvalho, 2013 <b>Fig. 2</b> Body depressed; disc length contained 0.8 to 1.2 times in disc width (DW); distance from mouth to cloaca 1.3 to 1.7, distance from cloaca to caudal sting 1.8 to 2.6, tail length 0.8 to 1.0, and caudal sting length 3.1 to 9.3 in DW; mouth width 7.6 to 14.3, tail width 7.2 to 16.4 in DW; tail length 1.4 in disc length (DL); horizontal orbital diameter 1.0 to 5.3 in least interorbital width. Mouth inferior; upper jaw with 18-39 teeth and lower jaw with 20-39 teeth. Pectoral fin with 92-103 rays; mid-dorsal spines 11-70 (Loboda, Carvalho, 2013). Dorsal disc coloration variable, from brown-olive to dark-grey, with bicolor ocelli distributed throughout entire disc (Loboda, Carvalho, 2013). <b>Maximum disc length.</b> 341.0 mm. <b>Distribution.</b> Paraná-Paraguay system. <b>Remarks.</b> <i>Potamotrygon amandae</i> was identified as <i>P.</i> cf. <i>motoro</i> by Graça, Pavanelli (2007). Loboda, Carvalho (2013) revised the <i>P. motoro</i> species complex from the Paraguay-Paraná basin and assigned all specimens from the rio Paraná, upstream from the Itaipu dam, to <i>P. amandae</i> (which otherwise was found only in the Pantanal region). Additionally, the same authors recorded <i>P. motoro</i> from the rio Guaporé, upper rio Paraguai basin and lower reaches of the rio Paraná in Argentina. On the other hand, the only other <i>Potamotrygon</i> species found in the upper rio Paraná floodplain is <i>P.</i> cf. <i>falkneri</i> that, as <i>P. amandae</i>, is a nonnative species in the region. Both occurrences are associated with the filling of the Itaipu Reservoir and the consequent inundation of the Sete Quedas Falls (Langeani <i>et al</i>., 2007; Júlio Júnior <i>et al</i>., 2009; Loboda, Carvalho, 2013).
description: Published as part of <i>Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da &amp; Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2)</i> on pages 15-16, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record/3678395
description: {"references": ["Loboda TS, Carvalho MR. Systematic revision of the Potamotrygon motoro (Muller &amp; Henle, 1841) species complex in the Parana-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae). Neotrop Ichthyol. 2013; 11 (4): 693 - 737.", "Pavanelli CS, Graca WJ, Zawadzki CH, Britski HA, Vidotti AP, Avelino GS, Verissimo S. Fishes from the Corumba Reservoir, Paranaiba River drainage, upper rio Parana basin, State of Goias, Brazil. Check List. 2007; 3 (1): 58 - 64.", "Langeani F, Castro RMC, Oyakawa OT, Shibatta OA, Pavanelli CS, Casatti L. Diversidade da ictiofauna do alto rio Parana: composicao atual e perspectivas futuras. Biota Neotropica, 2007; 7 (3): 181 - 97.", "Julio Junior HF, Dei Tos C, Agostinho AA, Pavanelli CS. A massive invasion of fish species after eliminating a natural barrier in the upper rio Parana basin. Neotrop Ichthyol. 2009; 7 (4): 709 - 18."]}