Ostorhinchus neotes

Mini cardinalfish | Larval Cardinalfish | Neotenous Cardinalfish | Apogon neotes
Ostorhinchus neotes
Ostorhinchus neotes, adult, Photo: Graham Edgar
Ostorhinchus neotes
Ostorhinchus neotes, adult, Great Barrier Reef, Cairns, Australia, Photo: Joe Shields
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Ostorhinchus neotes
Ostorhinchus neotes


Tropical Indo-Pacific


Small with a transparent body and a large black spot on mid tail base, black sub-dermal stripe that runs from forehead to tail base and half stripe over pectoral fin. Both stripes edged with gold. Form aggregations. Some variations have red around spot on tail base.


Max Size: 4 cm

Sea Temperature Range: N/A

Depth: 3-25m

Habitat Generalization Index: N/A

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.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Infrequent (8.3% 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: Large aggregations (150 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