You searched for species with distribution of Piauí Rivers, Parnaíba, Upper Parnaiba and sorted by species.
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/siluriformes/loricariidae/ancistrus/damasceni/1.jpg "Ancistrus damasceni")
1. Ancistrus damasceni (i:7, k: 0)
Size: 65mm (2.6")
IUCN: Least Concern/siluriformes/trichomycteridae/ituglanis/crispim/1.jpg "Ituglanis crispim")
2. Ituglanis crispim (i:3, k: 0)
IUCN: Not Evaluated/siluriformes/loricariidae/loricaria/parnahybae/1.jpg "Loricaria parnahybae")
3. Loricaria parnahybae (i:4, k: 0)
Size: 160mm (6.3")
IUCN: Least Concern