Longtail sole
{{Short description|Species of fish}}
{{Speciesbox
| image = Apionichthys unicolor.jpg
| image_caption =
| taxon = Apionichthys dumerili
| authority = Kaup, 1858
| status = LC
| status_system = IUCN3.1
| synonyms = * Apionichthys bleekeri Horst, 1879
- Apionichthys nebulosus Peters, 1869
- Apionichthys unicolor (Günther, 1862)
- Apionichthys ottonis Steindachner, 1868
- Soleotalpa unicolor Günther, 1862
}}
The longtail sole[https://www.fishbase.de/ComNames/CommonNamesList.php?ID=8150&GenusName=Apionichthys&SpeciesName=dumerili&StockCode=8461 Common names of Apionichthys dumerili] at www.fishbase.org. (Apionichthys dumerili) is a species of sole in the family Achiridae.{{fishbase species |genus=Apionichthys |species=dumerili |month=July |year=2019}} It was described by Johann Jakob Kaup in 1858. It inhabits the Amazon, Corantijn, Grajaú, Orinoco, and Oyapock rivers. It dwells at a depth range of {{convert|1|to|10|m|ft|abbr=on}}.[https://www.iucnredlist.org/species/16407184/16510382 Apionichthys dumerili] at the IUCN redlist. It reaches a maximum total length of {{convert|15|cm|in|abbr=on}}, more commonly reaching a TL of {{convert|11|cm|in|abbr=on}}.
The longtail sole is currently ranked as Least Concern by the IUCN redlist, due to a lack of known major threats, although it notes that the species is harvested as bycatch in shrimp trawls at an undetermined rate. The longtail sole is also marketed in the aquarium hobby.