Anostomoides atrianalis
Anostomoides atrianalis Pellegrin, 1909
Anostomoides atrianalis
photo by IBAMA


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Family:  Anostomidae (Headstanders)
Max. size:  15.4 cm NG (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Río Orinoco basin in Venezuela, in the Essequibo River basin in Guyana, and in the Amazon basin, including Madeira, Negro, Tocantins and Xingu rivers, in Bolivia, Brazil, Colombia, and Peru.
Diagnosis:   
Biology:  Distinct pairs breed on densely grown weedy places (Ref. 205).
IUCN Red List Status: Least Concern (LC); Date assessed: 28 April 2020 Ref. (130435)
Threat to humans:  harmless


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