Ostorhinchus cookii, Adult. Photo: Rick Stuart-Smith
Five full dark stripes and a half stripe through top of eye, which are wider than white inter-spaces. Mid stripe ends in large black spot on tail base, which has white margin, unlike in Apogon limenus, which also has pink tinge to fins.
Max Size: 10 cm
Habitat: Coral Reef, Rocky Reef
Habitat Generalisation Index: 10.5
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
IUCN Threat Status: Not Evaluated
Occurrence: Infrequent (8% 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 (11 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