''Aplocheilus parvus'', the dwarf panchax, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

killifish A killifish is any of various oviparous (egg-laying) cyprinodontiform fish (including families Aplocheilidae, Cyprinodontidae, Fundulidae, Profundulidae and Valenciidae). All together, there are 1,270 species of killifish, the biggest family ...

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

and Sri Lanka. This species grows to a length of . Its natural habitats are sheltered fresh and

brackish water Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuari ...

tanks, small streams and rivulets overgrown with vegetation. They are rarely use as an aquarium fish. It is often misidentified as ''

Aplocheilus panchax The blue panchax or whitespot (''Aplocheilus panchax'') is a common freshwater fish found in a large variety of habitats due to its high adaptability. This species is native to southern Asia from Pakistan to Indonesia. It has been discovered in t ...

'' or as ''

Aplocheilus blockii ''Aplocheilus blockii'' or the green panchax is a species of fish native to waters around India, Sri Lanka, and Pakistan. Description ''Aplocheilus blockii'' measures 6 centimeters long. It frequently inhabits coastal habitats that either cont ...

''.

References

parvus Tropical fish Freshwater fish of Sri Lanka Fish described in 1916 {{Cyprinodontiformes-stub