Orange spotted filefish
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Monacanthidae
Genus: Oxymonacanthus
Species:
O. longirostris
Binomial name
Oxymonacanthus longirostris

The orange spotted filefish or harlequin filefish, Oxymonacanthus longirostris, is a filefish in the family Monacanthidae found on coral reefs in the Indo-Pacific Oceans. The orangespotted filefish is a different species and refers to Cantherhines pullus.[1]

The orange spotted filefish is pale blue with about eight longitudinal rows of orange-yellow patches. In the wild it feeds almost exclusively on Acropora polyps.

[2]

In the aquarium

They are often offered for sale in the aquarium trade, but few survive long in captivity.[3] They are difficult to maintain in an aquarium unless provided with live corals. They must be kept in species-specific tanks, or tanks with very passive tankmates such as seahorses or pipefish. They have been successfully bred in captivity.[4]

In the wild

Harlequin Filefish, Vilamendhoo Maldives

Orange spotted filefish absorb and use chemicals in the Acropora coral they eat to take on its smell, which cloaks them from natural predators like cod. In addition to this trait, not observed among other vertebrates, they also use visual camouflage.[5]

References

  1. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2006). "Cantherhines pullus" in FishBase. April 2006 version.
  2. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2006). "Oxymonacanthus longirostris" in FishBase. March 2006 version.
  3. ↑ "Filefishes, Family Monacanthidae". The Marine Center. Retrieved 4 July 2006.
  4. ↑ "Spawning Reports Oxymonacanthus longirostris – OXYLON-101409-PEDMAT-001". The Breeder's Registry. Retrieved 6 October 2014.
  5. ↑ "Fish Smell Like the Coral They Eat—Disguise Is New to Science", by Carrie Arnold, National Geographic.
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