Animal Species:Moluccan Cardinalfish, Apogon monospilus Fraser, Randall & Allen, 2002

The Moluccan Cardinalfish changes colour according to the time of day. It is often silvery during the day and brown to reddish at night.

Moluccan Cardinalfish, Lembah Strait

Dave Harasti © Dave Harasti

Standard Common Name

Moluccan Cardinalfish

Alternative Name/s

Moluccen Cardinal

Identification

The Moluccan Cardinalfish has a whitish spot behind the base of the second dorsal fin. The species name ‘monospilus’ means ‘one spot’. The fish is often silvery during the day and brown to reddish at night.

Size range

The species grows to about 7.5 cm in length.

Distribution

The species occurs in the tropical Western Pacific. In Australia it is known from north-western Western Australia to the northern Great Barrier Reef, Queensland. Kuiter (2000) reports juveniles as far south as Sydney Harbour.

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

Apogon monospilus

Distribution by collection data

Ozcam map of Moluccan Cardinalfish specimens in the Australian Museums.

What does this mean?

Habitat

The Moluccan Cardinalfish occurs in coral reef and inshore waters.

Other behaviours and adaptations

The Moluccan Cardinalfish is a nocturnal species.

Classification

Species:
monospilus
Genus:
Apogon
Family:
Apogonidae
Order:
Perciformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Fraser, T. H., Randall, J. E. & G. R. Allen. 2002. Clarification of the cardinalfishes (Apogonidae) previously confused with Apogon moluccensis Valenciennes, with a description of a related new species. Raffles Bulletin of Zoology. 50(1): 175-184.
  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.
  3. Kuiter, R.H. 2000. Coastal Fishes of South-eastern Australia. Gary Allen. Pp. 437. (as A. moluccensis)
  4. Randall, J.E., Allen, G.R. & R.C. Steene. 1997. Fishes of the Great Barrier Reef and Coral Sea. Crawford House Press. Pp. 557. (as A. moluccensis)


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags Fishes, Ichthyology, Moluccan Cardinalfish, Apogon monospilus, Apogonidae, Moluccen Cardinal, dots/spots, < 10 cm, tropical water, marine, Great Barrier Reef, coral reef, inshore water, nocturnal, silver,