Parosphromenus opallios

Parosphromenus opallios is a species of gourami. It is native to Asia, where it is known only from the Kalimantan region of Indonesia. The species reaches 2.5 cm (1.0 in) in standard length and is known to be a facultative air-breather. Its specific epithet is derived from Greek and references the gemstone opal.^[2] Although present in the aquarium trade, it is noted to be uncommon.^[3]

Parosphromenus opallios
Conservation status
Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Anabantiformes
Family:	Osphronemidae
Genus:	Parosphromenus
Species:	P. opallios
Binomial name
Parosphromenus opallios Kottelat & P. K. L. Ng, 2005