Gymnotocinclus anosteos

{{Short description|Species of fish}}

{{Speciesbox

| taxon = Gymnotocinclus anosteos

| authority = Carvalho, Lehmann A. & Reis, 2008

}}

Gymnotocinclus anosteos is a species of armored catfish (Loricariidae) endemic to Brazil, where it is found in the Tocantinzinho River in the Tocantins River basin.{{cite journal|journal=Neotropical Ichthyology|volume=6|issue=3|pages=329–338|year=2008|title=Gymnotocinclus anosteos, a new uniquely plated genus and species of loricariid catfish (Teleostei: Siluriformes) from the upper rio Tocantins basin, central Brazil|first=Tiago Pinto |last=Carvalho |author2=Pablo Lehmann A |author3=Roberto E. Reis | url=http://www.scielo.br/pdf/ni/v6n3/a06v6n3.pdf|doi=10.1590/S1679-62252008000300006|doi-access=free}} This species grows to a length of {{convert|4.4|cm|in}} SL.{{FishBase |genus= Gymnotocinclus|species= anosteos| month = December| year = 2011}}

The genus Gymnotocinclus is unusual among the Loricariidae due to its extremely reduced armor plates that are characteristic of the family, giving the fish a relatively naked body. This fish probably has a basal position in the subfamily Hypoptopomatinae.