| 词条 | Raspy river stingray |
| 释义 |
| image = | status = DD | status_system = IUCN3.1 | status_ref = [1] | taxon = Potamotrygon scobina | authority = Garman, 1913 | synonyms = }} The raspy river stingray, mosaic stingray or arraia (Potamotrygon scobina) is a species of freshwater fish in the family Potamotrygonidae. 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 {{convert|69.1|cm|ft|abbr=on}} in disc width and {{convert|132.5|cm|ft|abbr=on}} 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] References1. ^1 2 3 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 {{cite journal| authors=Fontenelle, J.P.; and M.R. de Carvalho | year=2017 | title=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 | journal=Zootaxa | volume=4310 | issue=1 | doi=10.11646/zootaxa.4310.1.1}} External links
6 : Potamotrygon|Freshwater fish of Brazil|Endemic fauna of Brazil|Fauna of the Amazon|Fish described in 1913|Taxonomy articles created by Polbot |
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