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Melanotaenia parkinsoni

Melanotaenia parkinsoni
Parkinson's Rainbow
Parkinson's Rainbowfish was scientifically described by Allen in 1980. Its scientific name is Melanotaenia parkinsoni. The species was first collected by Allen in 1978 from a tributary of the Kemp Welsh River. 
Parkinson's Rainbowfish can be at least 12 cm  long. The body is brown or olive coloured on the back while the sides are silvery blue. A thin orange stripe runs between each row of scales.
The adult male has bright orange fins. In some male specimens, the sides of the body are also orange.
Parkinson's Rainbowfish lives in the south-eastern part of Papua New Guinea. The species is found in coastal lowland streams and pools from Port Moresby to Milne Bay. These streams are surrounded by rainforest or by grass plains with patchy rainforest. The species has for instance been found in turbid pools in severely dried out streams filled with fallen trees and branches.