''Mystus leucophasis'' is an Asian species of

upside-down catfish The name upside-down catfish is most commonly used by aquarists to refer to the mochokid catfish '' Synodontis nigriventris'' alternately known to ichthyologists as the blotched upside-down catfish or false upside-down catfish. However, a number ...

belonging to the family

Bagridae The Bagridae are a family of catfish that are native to Africa ('' Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes. Many large bagrid ...

. It is known for its unusual behaviour, as it primarily swims in an inverted position and never upright. ''Mystus leucophasis'' originate in the

Sittang The Sittaung River ( my, စစ်တောင်းမြစ် ; formerly, the Sittang or Sittounghttps://unstats.un.org/unsd/geoinfo/UNGEGN/docs/8th-uncsgn-docs/inf/8th_UNCSGN_econf.94_INF.75.pdf ) is a river in south central Myanmar in Bago ...

and other rivers of

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

. These catfish can grow to more than in length. They are commercially fished for human consumption as well as being found in the

aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ...

trade. When kept in the aquarium they cannot be kept with smaller "community" fish as they will eat them.

References

* *J. Asiatic Soc. Bengalv. 29 (no. 2) - pp148 Bagridae Fish of South Asia Fish described in 1860 Taxa named by Edward Blyth {{bagridae-stub