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 ...
. They are found in small, slow-flowing and shaded streams in the southwestern part of the island. They are essentially restricted to lowlands, although one introduced population occurs at an altitude of .Sudasinghe, H., J. Herath, R. Pethiyagoda and M. Meegaskumbura. (2018). Undocumented Translocations Spawn Taxonomic Inflation in Sri Lankan Fire Rasboras (Actinopterygii, Cyprinidae). PeerJ. 6:e6084. They are calm, social and attractively colored fish that sometimes are kept in aquariums.
Species
Historically, there was only a single recognized species in this genus, ''R. vaterifloris'', but in a review in 2013 four species were recognized, and this is followed by
FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.
. A comprehensive review in 2018 disputed this and only recognized two species, ''R. pallidus'' and ''R. vaterifloris'' (the other two considered
junior synonym
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently.
* In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ...
s).
* ''
Rasboroides nigromarginatus
''Rasboroides nigromarginatus'' is a species of freshwater cyprinid fish endemic to Sri Lanka where only known from small, shaded streams in the Atweltota region of the Kalu River basin.Batuwita, Sudesh; de Silva, M.; Edirisinghe, U. (November 2 ...
Deraniyagala
Deraniyagala is a town in the Kegalle district in the Sabaragamuwa Province of Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()) ...
, 1958
* '' Rasboroides rohani'' Batuwita, M. de Silva & Edirisinghe, 2013Batuwita, S., Silva, M.d. & Edirisinghe, U. (2013): A review of the danionine genera ''Rasboroides'' and ''Horadandia'' (Pisces: Cyprinidae), with description of a new species from Sri Lanka. ''Ichthyological Exploration of Freshwaters, 24 (2): 121-140.''
* ''
Rasboroides vaterifloris
''Rasboroides vaterifloris'', known as the pearly rasbora, vateria flower rasbora or fire rasbora, is a species of freshwater cyprinid fish endemic to Sri Lanka. It can be found in the shallow waters of shaded, slow-flowing clear streams with a ...
'' (
Deraniyagala
Deraniyagala is a town in the Kegalle district in the Sabaragamuwa Province of Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()) ...