Animal Species:Ornate Rainbowfish, Rhadinocentrus ornatus Regan, 1914

The Ornate Rainbowfish can be recognised by its slightly elongate shape and the dark scale margins that form a network pattern.  It occurs in coastal freshwater streams from southern Queensland to northern New South Wales.

Standard Common Name

Ornate Rainbowfish

Alternative Name/s

Blue Spotted Sunfish, Moreton Island Sunfish, Neon Light Sunfish, Porthole Fish, Soft-spined Rainbowfish, Soft-spined Sunfish, Southern Soft-spined Sunfish, Southern Sunfish

Identification

The Ornate Rainbowfish has a slightly elongate, semi-transparent body and dark scale margins that form a network pattern. The species usually has red fins although they may be bluish.  Fish from dark, tanin-stained waters can be almost black in colour.

Size range

It grows to a maximum size of 5 cm to 6 cm, although fish of up to 4 cm in length are more commonly encountered.

Distribution

The Ornate Rainbowfish occurs in coastal freshwater streams 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.

Rhadinocentrus ornatus

Distribution by collection data

Ozcam map of Ornate Rainbowfish specimens in the Australian Museums.

What does this mean?

Habitat

It is usually found in slow-flowing streams, ponds and dune lakes.

Economic/social impacts

The Ornate Rainbowfish is a popular aquarium species.

Classification

Species:
ornatus
Genus:
Rhadinocentrus
Family:
Melanotaeniidae
Order:
Atheriniformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Allen, G.R., Midgley, S.H. & M. Allen. 2002. Field Guide to the Freshwater Fishes of Australia. Western Australian Museum. Pp. 394.
  2. Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.

 


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags Fishes, Ichthyology, Ornate Rainbowfish, Rhadinocentrus ornatus, Melanotaeniidae, elongate, coastal freshwater, freshwater streams, Blue Spotted Sunfish, Moreton Island Sunfish, Neon Light Sunfish, Porthole Fish, Soft-spined Rainbowfish, Soft-spined Sunfish, Southern Soft-spined Sunfish, Southern Sunfish, semi-transparent, red fins, < 10 cm, slow-flowing streams, ponds, dune lakes, popular aquarium fish,