Heniochus varius

Chaetodontidae
Humphead Bannerfish, Humphead Bannerfish
  • Heniochus varius, Bali, Indonesia, Photo: Ian Shaw
    Heniochus varius, Bali, Indonesia, Photo: Ian Shaw
  • Heniochus varius, Naigani Is, Fiji, Photo: Andrew Green
    Heniochus varius, Naigani Is, Fiji, Photo: Andrew Green
  • Heniochus varius, Juvenile, Bali, Indonesia, Photo: Ian Shaw
    Heniochus varius, Juvenile, Bali, Indonesia, Photo: Ian Shaw
Distribution
Tropical Indo-Pacific
Description
Brown, with two thin white stripes on side form a triangle. Two horns on head. Lacks yellow pectoral fins of H. monoceros and H. singularis. H. pleurotaenia, an Indian Ocean species not known from Australia, has light patch separating dark anal fin and area behind pectoral fin.
Information
  • Max Size: 19 cm
  • Sea Temperature Range: 23.8-31.4°C
  • Depth: 2-30m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 10
    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: Exploitation
  • IUCN Threat Status: Least Concern
  • Occurrence: Common (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 (2 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
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