Heniochus chrysostomus

Chaetodontidae
Pennant Bannerfish, Horned Bannerfish, Threeband Pennantfish
  • Heniochus chrysostomus, Adult, Bali, Indonesia, Photo: Ian Shaw
    Heniochus chrysostomus, Adult, Bali, Indonesia, Photo: Ian Shaw
  • Heniochus chrysostomus, French Polynesia, Photo: Antonia Cooper
    Heniochus chrysostomus, French Polynesia, Photo: Antonia Cooper
  • Heniochus chrysostomus, Juvenile, Coral Sea, Australia, Photo: Rick Stuart-Smith
    Heniochus chrysostomus, Juvenile, Coral Sea, Australia, Photo: Rick Stuart-Smith
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
White with three brown bands, the first on head through eyes and on to ventral fins, and the last on rear of dorsal fin and on to tail fin. Triangular shape, and tallest dorsal spine with extended feather-like pennant.
Information
  • Max Size: 18 cm
  • Sea Temperature Range: 22.3-31.2°C
  • Depth: 1-45m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 18.2
    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 (29% 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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