Enneapterygius mirabilis

Miracle Threefin
Enneapterygius mirabilis
Enneapterygius mirabilis, adult, Middle Percy Is, QLD, Photo: Andrew Green



Overall appearance either semi-transparent greenish brown, with white saddle below rear of second dorsal fin; OR whitish with 4-5 green/brown bars. First dorsal fin and margins of second and third dorsal fins whitish. First dorsal fin taller than second dorsal fin.


Max Size: 3 cm

Sea Temperature Range: 19.8-29.1°C

Depth: 8-37m.

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 (1.8% 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: Few (2 per transect)

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

Edit by: Andrew Green