2013
DOI: 10.1590/s1679-62252013000400001
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Abstract: A systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin based on morphological characters was undertaken. Morphological systems analyzed include external morphology, coloration, dermal denticles, and spines, canals of the ventral lateral-line system, and skeletal components. Potamotrygon motoro is widely distributed in the Paraná-Paraguay basin and some of its diagnostic characters are: ocelli present on dorsal disc tricolored, well-defined and evenl… Show more

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Cited by 42 publications
(44 citation statements)
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“…Skeletal components of the pelvic girdle, fin and clasper in the adult abnormal specimen of Potamotrygon sp. (Figure ) differ from the conspecific non‐deformed specimen (Figure ) and other members of Potamotrygon (Carvalho et al, ; Fontenelle, Silva, & Carvalho, ; Loboda & Carvalho, ; Nishida, ; Rosa, ; Silva & Carvalho, , b; Silva & Carvalho, ; Silva & Loboda, ; Taniuchi & Ishihara, ) (Figure ). In the adult specimen the pelvic radials fail to reach the fin margins, are unsegmented and barely branched (Figure ) a condition also observed in the deformed juvenile (MZUSP 124856, Figure ).…”
Section: Discussionmentioning
confidence: 74%
See 1 more Smart Citation
“…Skeletal components of the pelvic girdle, fin and clasper in the adult abnormal specimen of Potamotrygon sp. (Figure ) differ from the conspecific non‐deformed specimen (Figure ) and other members of Potamotrygon (Carvalho et al, ; Fontenelle, Silva, & Carvalho, ; Loboda & Carvalho, ; Nishida, ; Rosa, ; Silva & Carvalho, , b; Silva & Carvalho, ; Silva & Loboda, ; Taniuchi & Ishihara, ) (Figure ). In the adult specimen the pelvic radials fail to reach the fin margins, are unsegmented and barely branched (Figure ) a condition also observed in the deformed juvenile (MZUSP 124856, Figure ).…”
Section: Discussionmentioning
confidence: 74%
“…In the adult specimen the pelvic radials fail to reach the fin margins, are unsegmented and barely branched (Figure ) a condition also observed in the deformed juvenile (MZUSP 124856, Figure ). The lateral pre‐pelvic processes (lpp) of pelvic girdle are greatly reduced and almost undiscernible (Figure ) and the right dorsal terminal 2 (dt2) is horizontally folded, a condition distinct from the observed in members of the genus that may bear a marked medial longitudinal groove in this cartilage, but which is always unfolded horizontally (Figure ) (see also Fontenelle et al, ; Loboda & Carvalho, ; Silva & Carvalho, , b; Silva & Carvalho, ; Silva & Loboda, ). The proximal portion of dorsal marginal (dm) is fused to the axial cartilage (Figure ), different from the typical condition in which this cartilage is detached from the axial cartilage but connected to the beta cartilage dorsally (Figure b).…”
Section: Discussionmentioning
confidence: 88%
“…This led to an invasion of the Upper Paraná by multiple fish species of the more diverse (Albert et al 2011) Lower Paraná ecoregion (Júlio Júnior et al 2009Vitule et al 2012). Two or three species of Potamotrygon have established viable populations in the newly invaded ecoregion (Garrone-Neto et al 2007da Graça and Pavanelli 2007;Loboda and de Carvalho 2013). However, P. brachyura has been unable to reach the Upper Paraná ecoregion so far, despite having been recorded close to the Itaipú dam (Fig.…”
Section: Summary Of Maxlike and Generalised Additive Models (Gam) Umentioning
confidence: 99%
“…Four genera are presently recognised as valid within the subfamily (Carvalho et al, ; Carvalho & Lovejoy, ): Potamotrygon Garman 1877, Paratrygon Duméril 1865, Plesiotrygon Rosa et al, and Heliotrygon Carvalho & Lovejoy, . Paratrygon is currently monotypic (although a recent taxonomic revision recognised seven new species within the genus) (Loboda, ), Heliotrygon and Plesiotrygon have two valid species each (Carvalho & Lovejoy, ; Carvalho & Ragno, ; Rosa et al, ) and Potamotrygon is the most diverse genus, including 35 valid species (Carvalho et al, , ; Silva & Carvalho, , ; Loboda & Carvalho, ; Fontenelle et al, ; Silva & Carvalho, , Carvalho, 2016a,b; Fontenelle & Carvalho, ).…”
Section: Introductionmentioning
confidence: 99%