Ecsenius aequalis

Fourline Combtooth Blenny | Fourline Blenny
Ecsenius aequalis
Ecsenius aequalis, Lizard Island, QLD, Photo: Rick Stuart-Smith
Ecsenius aequalis
Ecsenius aequalis, Abiington Reef, QLD, Photo: Rick Stuart-Smith
Ecsenius aequalis
Ecsenius aequalis, Great Barrier Reef, Cairns, Qld, Photo: Andrew Green
Ecsenius aequalis
Ecsenius aequalis, QLD, Australia, Photo: Joe Shields
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Ecsenius aequalis
Ecsenius aequalis
Ecsenius aequalis
Ecsenius aequalis


Tropical Indo-Pacific


Small, semi-translucent grey blenny with 3 narrow black stripes along sides, a fourth black line along base of dorsal fin, and sometimes broken white stripes between black lines. Eyes with golden iris and black and white spots around outer. Perches on top of coral.


Max Size: 4 cm

Sea Temperature Range: 24.2-29.8°C

Depth: 2-11m

Habitat Generalization Index: 2.88

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 (9.8% 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 (3 per transect)

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

Edit by: Joe Shields