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Betta raja
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Anabantiformes
Family:	Osphronemidae
Genus:	Betta
Species:	B. raja
Binomial name
Betta raja H. H. Tan & P. K. L. Ng, 2005

Betta raja is a species of betta endemic to the island of Sumatra in Indonesia. It is an inhabitant of swamps in lowland forests. This species grows to a length of 6.4 centimetres (2.5 in) SL. It is used as bait by local fishermen and has also been found in the aquarium trade. Despite its scientific epithet "raja" meaning "Prince" or "king", this species is not identical to the aquarium breed - the King betta. The derivation of the King betta is not fully known and may or may not involve crossbreeding with B. raja.

References

1. Low, B.W. (2019). "Betta raja". IUCN Red List of Threatened Species. 2019: e.T91310489A91310496. doi:10.2305/IUCN.UK.2019-2.RLTS.T91310489A91310496.en. Retrieved 20 November 2021.
2. Froese, Rainer; Pauly, Daniel (eds.). "Betta raja". FishBase. February 2014 version.
3. Juniper Russo (2009): "King Betta" Variety Sold at Petco Archived 2014-03-22 at the Wayback Machine

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• IUCN Red List least concern species
• Betta
• Taxa named by Heok Hui Tan
• Taxa named by Peter Kee Lin Ng
• Fish described in 2005
• Anabantiformes stubs