Heniochus singularius

Chaetodontidae
Singular Bannerfish
  • Heniochus singularius, Adult, Aceh, Indonesia, Photo: Ian Shaw
    Heniochus singularius, Adult, Aceh, Indonesia, Photo: Ian Shaw
  • Heniochus singularius, Bali, Indonesia, Photo: Graham Edgar
    Heniochus singularius, Bali, Indonesia, Photo: Graham Edgar
  • Heniochus singularius, Photo: Rick Stuart-Smith
    Heniochus singularius, Photo: Rick Stuart-Smith
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Mainly black with a diffuse white bar in middle of body, and a white bar on head behind eye. Dorsal fin yellow except for a short white pennant on leading edge. Horn-like projection on forehead. Distinguished from H. monoceros (Masked Bannerfish) by dark anal fin and less distinct bars on the body.
Information
  • Max Size: 30 cm
  • Sea Temperature Range: 22.3-31.4°C
  • Depth: 2-250m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 4.1
    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: Infrequent (7% 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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