Animal Species:Beaked Leatherjacket, Oxymonacanthus longirostris (Bloch & Schneider, 1801)

The Beaked Leatherjacket's body is green with small dark-edged yellow to orange spots with a dark spot on the caudal fin. It occurs on coral reefs of the Indo-West Pacific and is usually seen in pairs feeding on coral polyps.

A Lateral view of Beaked Leatherjacket

Erik Schlögl © Erik Schlögl

Standard Common Name

Beaked Leatherjacket

Alternative Name/s

The Beaked Leatherjacket has also been called the Harlequin Filefish and Longnose Filefish.

Identification

The Beaked Leatherjacket has a long snout with a small upturned mouth. The body profile above and below the snout is concave. The body is green with small dark-edged yellow to orange spots. There is a dark spot on the caudal fin.

Size range

It grows to 9 cm in length.

Distribution

The Beaked Leatherjacket occurs on coral reefs of the Indo-West Pacific.

In Australia it is known from the central coast of Western Australia, around the tropical north of the country and south to northern New South Wales. View an image of a fish from North West Solitary Island.

 

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

Oxymonacanthus longirostris

Distribution by collection data

Ozcam map of Beaked Leatherjacket specimens in the Australian Museum.

What does this mean?

Feeding and Diet

The species is often seen in pairs feeding on coral polyps.

Other behaviours and adaptations

The species is often seen in pairs feeding on coral polyps.

Classification

Species:
longirostris
Genus:
Oxymonacanthus
Family:
Monacanthidae
Order:
Tetraodontiformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Allen, G.R. 1997. Marine Fishes of Tropical Australia and South-east Asia. Western Australian Museum. Pp. 292.
  2. Allen, G.R. & R. Swainston. 1988. The Marine Fishes of North-Western Australia. A Field Guide for Anglers and Divers. Western Australian Museum. Pp. 201.
  3. Kuiter, R.H. 1996. Guide to Sea Fishes of Australia. New Holland. Pp. 433.
  4. Myers, R.F. 1999. Micronesian Reef Fishes. Coral Graphics. Pp. 330.
  5. Randall, J.E., Allen, G.R. & R.C. Steene. 1997. Fishes of the Great Barrier Reef and Coral Sea. Crawford House Press. Pp. 557.


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags fishes, ichthyology, Monacanthidae, Beaked Leatherjacket, Oxymonacanthus longirostris, green, flatfish, < 10 cm, spots, coral reef, marine, yellow spots, dark spot on caudal fin, long snout, small upturned mouth,