Raspy river stingray

Raspy river stingray
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Myliobatiformes
Family: Potamotrygonidae
Genus: Potamotrygon
Species: P. scobina
Binomial name
Potamotrygon scobina
Garman, 1913

The raspy river stingray, mosaic stingray or arraia (Potamotrygon scobina) is a species of freshwater fish in the Potamotrygonidae family. This stingray is endemic to the Amazon basin in Brazil,[1] where known from the Amazon–Pará River (Belém to near the confluence with the Putumayo River), the Madeira River basin, Uatumã River and lower Tocantins River.[2]

It reaches up to 69.1 cm (2.27 ft) in disc width and 132.5 cm (4.35 ft) in total length.[1] It is fairly common, but threatened by habitat loss.[1] It is part of a group consisting of five allopatric Amazonian stingrays, the others being P. adamastor (Uraricoera River), P. amazona (Juruá, Jutaí and Rio Negro), P. garmani (mid to upper Tocantins River) and P. limai (Jamari River).[2] These all have three angular cartilages (as opposed to the one or two seen in other species in the genus).[2]

References

  1. 1 2 3 4 De Almeida, M.P. & Charvet-Almeida, P. 2004. Potamotrygon scobina. 2006 IUCN Red List of Threatened Species. Downloaded on 3 August 2007.
  2. 1 2 3 Fontenelle, J.P.; and M.R. de Carvalho (2017). "Systematic Revision of the Potamotrygon scobina Garman, 1913 Species-complex (Chondrichthyes: Myliobatiformes: Potamotrygonidae), with the Description of Three New Freshwater Stingray Species from Brazil and Comments on Their Distribution and Biogeography". Zootaxa. 4310 (1). doi:10.11646/zootaxa.4310.1.1.


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