This blog refers to Rhadinocentrus ornatus; Australian Rainbowfish shortly referred to as Rhads. A fish that has been quite popular in the early 1900's. Easy to keep and easy to breed. Pretty little fish (hardly exceeding 7cm length) and the only species in the monotypical family Rhadinocentrus. That's right a family with only one species. One species, but incredibly variable in coloration. Not only does this species differ in coloration in between habitats; even specimens from the same locality can show differences in coloration (as can be seen in the photos of Peter Hansler, showing red and blue morphs, males, from Snapper Creek, Queensland). So, there you are. Give it a try and create your own color morph of Rhads.
Rhadinocentrus belongs to the colorful Rainbowfish. The genus has been described in 1914 by Regan as it differs from other Rainbowfish by the soft finrays. The scientific name is based on the Greek words 'rhadinos' (soft or flexible) and 'kentron' (sting).
The color morph I painted originates from Carland Creek, Queensland.
Want to give it a try yourself? Print the coloring plate and have fun!
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Prints of the artwork in this blog can be ordered at my printshop in full and in detailed version (without the white borders).
Hansler, Peter: Rainbowrunner (website)
Regan, C. T. (1914): Report on the freshwater fishes collected by the British Ornithologists' Union expedition and the Wollaston expedition in Dutch New Guinea. - Transactions of the Zoological Society of London Vol. 20 (pt 6, no. 1) (art. 6): 275-286, Pl. 31
Tappin, Adrian R. (2016): Rhadinocentrus ornatus - Rainbowfish (website)