Enneapterygius similis
Masked threefin
Enneapterygius similis, male, NSW, Australia, Photo: Ian Shaw
Enneapterygius similis, NSW, Australia, Photo: Ian Shaw
Enneapterygius similis, NSW, Australia, Photo: Ian Shaw
Similar Species
Same Genus
![Enneapterygius sp. [Red Sea]](https://images.reeflifesurvey.com/0/species_ba_5ae13db303c56.w400.h266.jpg)
Distribution
Tropical Indo-Pacific
Description
Males red on front half of body and dark on rear, cheek, chest and pectoral fin base densely spotted. White triangular bars behind each of 2 rear dorsal fins, similar to a number of Enneapterygius species, including E. hemimelas (Halfblack Triplefin).
Information
Max Size: 4 cm
Sea Temperature Range: 19.8-27.2°C
Depth: 0-13m
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: Common (24.5% 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 (36 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Joe Shields