Enneapterygius flavoccipitis

Two-colour threefin | Northern Bicoloured Triplefin | Yellownape Triplefin
Enneapterygius flavoccipitis
Enneapterygius flavoccipitis, NT, Australia, Photo: Graham Edgar
Enneapterygius flavoccipitis
Enneapterygius flavoccipitis, QLD, Australia, Photo: Joe Shields
Enneapterygius flavoccipitis
Enneapterygius flavoccipitis, Gulf of Carpentaria, NT, Australia, Photo: Andrew Green
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Enneapterygius flavoccipitis
Enneapterygius flavoccipitis
Enneapterygius flavoccipitis


Tropical Indo-Pacific


Red-brown mottled body, short brownish bars across back, and a pattern of white-red-white bars on tail base. Grey patch with yellow markings on top of head behind eyes and onto nape and red line from eye to tip of snout.


Max Size: 3 cm

Sea Temperature Range: N/A

Depth: 0-22m

Habitat Generalization Index: 0.88

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 (5.2% 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: Several (5 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: Joe Shields