Meiacanthus atrodorsalis

Blenniidae
Eyelash Fangblenny, Eyelash Harp-tail, Eyelash Harptail Blenny, Forktail Blenny, Lyretail Blenny, Yellowtail Fangblenny, Yellowtail Poison-fang Blenny
  • Meiacanthus atrodorsalis, Cairns, Great Barrier Reef, QLD, Photo: Andrew Green
    Meiacanthus atrodorsalis, Cairns, Great Barrier Reef, QLD, Photo: Andrew Green
  • Meiacanthus atrodorsalis, Bali, Indonesia, Photo: Ian Shaw
    Meiacanthus atrodorsalis, Bali, Indonesia, Photo: Ian Shaw
  • Meiacanthus atrodorsalis, Photo: Rick Stuart-Smith
    Meiacanthus atrodorsalis, Photo: Rick Stuart-Smith
  • Meiacanthus atrodorsalis, North WA, Australia, Photo: Andrew Green
    Meiacanthus atrodorsalis, North WA, Australia, Photo: Andrew Green
  • Meiacanthus atrodorsalis, Night. Dobu Is, Papua New Guinea, Photo: Andrew Green
    Meiacanthus atrodorsalis, Night. Dobu Is, Papua New Guinea, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
Grey-blue front half of body grading to a yellow tail with long filamentous upper and lower lobes, black stripe along base of dorsal fin and distinctive ‘eyelash’ marking (short oblique bar through eye). Mimicked by Plagiotremus laudandus (Bicolor Fangblenny) which lacks the eyelash and has black stripe near top of dorsal fin, rather than base. Similar M. phaeus (Twilight Fangblenny) lacks yellow rear and ‘eyelash’.
Information
  • Max Size: 11 cm
  • Sea Temperature Range: 21.4-31.2°C
  • Depth: 1-30 m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 15.9
    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
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Common (22% 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: Joe Shields
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