Higher classification Boraras
Scientific name Boraras urophthalmoides
|Similar Boraras, Boraras brigittae, Dwarf rasbora, Boraras merah, Microrasbora|
Boraras urophthalmoides in fluval spec 19l aquarium
Boraras urophthalmoides (exclamation point rasbora or least rasbora) is a species of ray-finned fish in the genus Boraras. It was first described from a freshwater swamp associated with the Sai Buri River in Pattani province, southern (peninsular) Thailand, but currently considered to range throughout much of southern and central parts of the country, with the province of Narathiwat on the border, with Peninsular Malaysia appearing to represent the southern limit of its range.
- Boraras urophthalmoides in fluval spec 19l aquarium
- Boraras urophthalmoides sparring
Additional records are not extensive, but it seemingly occurs throughout the Mae Klong and Chao Phraya river basins and has been recorded in both Vietnam and Cambodia, where one notable population inhabits the moats and ponds of the Angkor Wat temple complex near Siem Reap.
Boraras urophthalmoides sparring
Boraras uriphthalmoides inhabits shallow bodies of water such as swamps, marshes, floodplains and rice paddies, where it is typically associated with submerged vegetation in predominantly clear water. It is also known to move into temporarily inundated areas during the wet season.
This species is very small, ranging from 12 to 16 mm.
Mature females are noticeably rounder-bellied and often a little larger than the slightly more colourful males.