Collected from a creek which is a relatively extensive watercourse, with sections about 50 m wide and pools over 2 m deep; vegetated with grasses and other plants, and the bottom consists of mud and clay (Ref. 57546).
- Protogino, L., A.M. Miquelarena and H.L. LÃ³pez 2006 A new species of Astyanax (Teleostei, Characiformes, Characidae), with breeding tubercles, from ParanÃ¡ and Uruguay river basins. Zootaxa 1297:1-16. (Ref. 57546) http://www.fishbase.org/references/FBRefSummary.php?id=57546&speccode=62942
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