Animal Species:Crimsonspotted Rainbowfish, Melanotaenia duboulayi (Castelnau, 1878)

The Crimsonspotted Rainbowfish has a dark stripe along the side and a red spot on the upper operculum. Males have a series of red stripes along the sides of the body and red spots on the dorsal, anal and caudal fins. The species is endemic to Australia.

Crimsonspotted Rainbowfish, Melanotaenia duboulayi

Mark McGrouther © Australian Museum

Standard Common Name

Crimsonspotted Rainbowfish

Alternative Name/s

Duboulay's Rainbowfish

Identification

The Crimsonspotted Rainbowfish is olive brown above, silvery on the sides and white below. There is a dark stripe along the side and a red spot on the upper operculum. The scale margins are brownish.

Males have a series of red stripes along the sides of the body and red spots on the dorsal, anal and caudal fins. When males display to females, all their fins, with the exception of the pelvics, have black margins. The fins of females and juveniles are clear.

Size range

Crimsonspotted Rainbowfish grows to 9 cm in length but individuals of 6 cm to 7 cm are more common.

Distribution

The species is endemic to Australia. It is found in coastal freshwaters from southern Queensland to northern New South Wales.

The map below shows the Australian distribution of the species based on public sightings and specimens in Australian Museums.  Source: Atlas of Living Australia.

Melanotaenia duboulayi

Distribution by collection data

Ozcam map of Crimsonspotted Rainbowfish specimens in the Australian Museums.

What does this mean?

Classification

Species:
duboulayi
Genus:
Melanotaenia
Family:
Melanotaeniidae
Order:
Atheriniformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Allen, G.R. 1982. Rainbowfishes of Australia and Papua New Guinea. Angus & Robertson. Pp. 141. (as M. splendida fluviatilis)
  2. Allen, G.R. 1989. Freshwater Fishes of Australia. T.F.H. Publications. Pp. 240.
  3. Allen, G.R., Midgley, S.H. & M. Allen. 2002. Field Guide to the Freshwater Fishes of Australia. Western Australian Museum. Pp. 394.
  4. Allen, G.R. in McDowall, R.M. 1996. Freshwater Fishes of South-Eastern Australia. Reed Books. Pp. 247.
  5. Merrick, J.R. & G.E. Schmida. 1984. Australian Freshwater Fishes. Biology and Management. John R. Merrick. Pp. 409.


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags fishes, ichthyology, Crimsonspotted Rainbowfish, Melanotaenia duboulayi, stripes or bands, dots/spots, endemic to Australia, Duboulay's Rainbowfish, olive brown, silvery sides, white underside, < 10 cm, freshwater, coastal freshwaters,