Microglanis Oliveirai (Microglanis oliveirai) is a ray-finned fish of the family Pseudopimelodidae. It inhabits freshwater waters. This species can reach a maximum total length of 2.6 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
Microglanis oliveirai is readily distinguished from all congeners in the possession of the following characters: short lateral line, reaching only the vertical line through base of dorsal-fin spine; 3-6 lateral line pores; 3-6 gill rakers in the first branchial arch; 10-11 branched caudal fin rays; 5 pleural ribs; 27-28 free vertebrae; large anterior fontanel; small supraoccipital process not contacting anterior nuchal plate; small nuchal shield .: elongated.
Behavioural data for Microglanis Oliveirai is currently being reviewed.
Freshwater; benthopelagic. Tropical; 15°S - 16°S, 52°W - 53°W South America: Brazil.
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