Potamotrygon falkneri Castex, Maciel 1963
Description
Fig. 2
Body depressed; disc length contained 1.0 to 1.1 times in disc width (DW); distance from mouth to cloaca 1.4 to 1.6, distance from cloaca to caudal sting 1.7 to 2.1, tail length 1.0, and caudal sting length 4.2 to 6.0 in DW; mouth width 9.9 to 12.9, tail width 7.6 to 9.8 in DW; tail length 1.0 in disc length (DL); horizontal orbital diameter 2.3 to 3.9 in least interorbital width. Mouth inferior; upper jaw with 22-50 teeth and lower jaw with 26 to 44 teeth. Pectoral fin with 95-99 rays; mid-dorsal spines 18-56 (Rosa, 1985). Dorsal disc coloration brown, with numerous oval-shaped to reniform, yellow (occasionally black-margined) ocelli, usually wider than eye diameter (Graça, Pavanelli, 2007).
Maximum disc length. 780.0 mm (Graça, Pavanelli, 2007).
Distribution. Paraná-Paraguay system.
Remark. Potamotrygon cf. falkneri is a non-native species in the upper rio Paraná and its occurrence can be associated with the filling of the Itaipu Reservoir and the consequent inundation of the Sete Quedas Falls.
Notes
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Linked records
Additional details
Identifiers
Related works
- Cites
- Figure: 10.5281/zenodo.3678399 (DOI)
- Is part of
- Journal article: 10.1590/1982-0224-20170094 (DOI)
- Journal article: http://zenodo.org/record/3678395 (URL)
- Journal article: http://publication.plazi.org/id/FFB0397B3847FFE9FFB4FFDA2B5A0600 (URL)
Biodiversity
- Scientific name authorship
- Castex, Maciel
- Kingdom
- Animalia
- Phylum
- Chordata
- Order
- Myliobatiformes
- Family
- Potamotrygonidae
- Genus
- Potamotrygon
- Species
- falkneri
- Taxon rank
- species
- Taxonomic concept label
- Potamotrygon falkneri Castex, 1963 sec. Ota, Deprá, Graça & Pavanelli, 2018
References
- Rosa RS. A systematic revision of the South American freshwater stingrays (Chondrichthyes: Potamotrygonidae). [PhD Thesis]. Virginia, The Faculty of the School of Marine Science; 1985.
- 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.