''Pethia reval'', the red-finned barb, is a species of

cyprinid Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest verte ...

fish

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

. This species can reach a length of SL. Congener, ''

Pethia cumingii ''Pethia cumingii'', known as the Cuming's barb or the two spot barb (though that name can also apply to the Ticto barb, ''P. ticto''), is a species of cyprinid fish endemic to Sri Lanka. Its stocks have declined in recent decades, and in 199 ...

'', also a Sri Lankan endemic, has long been presumed to be dichromatic with some populations exhibiting yellow fins and others displaying red fins. In 2008, the red-finned populations were elevated to the status of species and given the name, ''Pethia reval'', while the yellow-finned form remains ''P. cumingii''. It is ''P. reval'', the red-finned species, that has been kept most frequently by aquarists since the 1930s though identified as ''P. cumingii'' throughout the aquarium literature and aquarium trade until recently."Exotic Aquarium Fishes" by Dr. William T. Innes, Innes Publishing Co, Philadelphia, 1935

References

Pethia Taxa named by Madhava Meegaskumbura Taxa named by Anjana Silva Taxa named by Kalana Maduwage Taxa named by Rohan Pethiyagoda Fish described in 2008 Fish of Sri Lanka Barbs (fish) {{Barbinae-stub