Physopyxis ananas is a species of thorny catfish found in the lowlands of the Essequibo and Amazon basins. It is found in the countries of Brazil, Guyana, Peru and Venezuela. This species grows to a length of 2.2 centimetres (0.87 in) SL. They prefer to live in submerged organic litter in shallow waters.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0