Oxymonacanthus longirostris

Monacanthidae
Harlequin Filefish, Beaked Leatherjacket, Coral Filefish, Long-nose Leatherjacket, Longnose Filefish
  • Oxymonacanthus longirostris, Ningaloo Reef, Photo: Rick Stuart-Smith
    Oxymonacanthus longirostris, Ningaloo Reef, Photo: Rick Stuart-Smith
  • Oxymonacanthus longirostris, Maldives, Photo: Rick Stuart-Smith
    Oxymonacanthus longirostris, Maldives, Photo: Rick Stuart-Smith
  • Oxymonacanthus longirostris, Adult, Northern Great Barrier Reef, Australia, Photo: Joe Shields
    Oxymonacanthus longirostris, Adult, Northern Great Barrier Reef, Australia, Photo: Joe Shields
Distribution
Tropical Indo-Pacific
Description
Distinctive long-snout and yellow spots forming stripes along green body. Frequently seen in pairs on healthy coral reefs, feeding on staghorn coral polyps.
Information
  • Max Size: 12 cm
  • Sea Temperature Range: 20.1-31.4°C
  • Depth: 1-35m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 18.7
    Also referred to as the SGI (Species generalisation index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here
Rarity
  • Threats: Climate change/warming, Exploitation, Habitat degradation
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Frequent (20% of sites)
    Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
  • Abundance: Few (3 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: extract from RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland
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