Xenurobrycon polyancistrus

{{Short description|Species of fish}}

{{speciesbox

|name=

|status=LC

|status_system=IUCN3.1

|status_ref={{cite iucn |author=Lima, F. |author2=Correa, E. |author3=Carvajal, F. |author4=Sarmiento, J. |year=2023 |title=Xenurobrycon polyancistrus |volume=2023 |page=e.T49830721A160427968 |doi=10.2305/IUCN.UK.2023-1.RLTS.T49830721A160427968.en |access-date=23 March 2025}}

|taxon= Xenurobrycon polyancistrus

|authority=S. H. Weitzman, 1987

}}

Xenurobrycon polyancistrus is a species of characid fish of the subfamily Glandulocaudinae. A freshwater fish, it is the smallest species of characin in its family and order. Adults can grow up to {{cvt|1.4|cm}} long.{{FishBase |genus=Xenurobrycon |species=polyancistrus |id=53372 |month= August|year=2014 }}

Distribution

Found in the gallery forest pools adjacent to rivers in savannah areas of the Rio Mamore and Rio Isiboro drainages in Bolivia.{{cite journal|url=https://www.biodiversitylibrary.org/page/34570564#page/130/mode/1up|title=A new species of Xenurobrycon Nannostomus (Teleostei: Characidae) from the Río Mamore basin of Bolivia |author=Stanley H. Weitzman |journal=Proceedings of the Biological Society of Washington |volume=100|pages=112–120 |year=1987}}

It is also found in the Río Madre de Dios basin in Peru.

Discovery

It was found among a collection of fishes from Bolivia sent by Gerard Loubens of the Office de la Recherche Scientifique et Technique Outre-Mer, Laboratoire d'Ichthyologie de l'Universite de Trinidad, Estado Beni, Bolivia.

References