Ostorhinchus cyanosoma, Adult, Raja Ampat, Indonesia, Photo: Andrew Green
Ostorhinchus cyanosoma, Adult, Ambon Harbour, Indonesia, Photo: Joe Shields
Ostorhinchus cyanosoma, Adult, Bali, Indonesia, Photo: Ian Shaw
Ostorhinchus cyanosoma, QLD, Australia, Photo: Rick Stuart-Smith
Distribution
Tropical Indo-Pacific
Description
Five narrow yellow/orange stripes plus distinct half stripe from eye. Similar to O. wassinki and O. properuptus, but distinguished by narrower yellow stripes, particularly those on lower body, and distinguished from O.rubrimacula by lacking red spot at tail base. Inter-spaces between stripes pearly white except for on head where they are iridescent blue.
Information
Max Size: 8 cm
Depth: 1-50m
Habitat: Coral Reef, Rocky Reef
Habitat Generalisation Index: 2.7
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
IUCN Threat Status: Not Evaluated
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: Many (57 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland
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