Ecsenius alleni

Allens Combtooth Blenny | Allen's Blenny
Ecsenius alleni
Ecsenius alleni, Scott Reef, WA, Photo: Rick Stuart-Smith
Ecsenius alleni
Ecsenius alleni, juvenile, Scott Reef, WA, Photo: Rick Stuart-Smith
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Ecsenius alleni
Ecsenius alleni




Grey-brown upper body, white underside, black bars on back, continuing as brown bars on sides, large, round white-edged black spot at pectoral fin base and white stripes through eye. Similar E. tigris (Tiger Combtooth Blenny) lacks pectoral spot and is only found in the Coral Sea. Endemic to north-western Australia.


Max Size: 3 cm

Sea Temperature Range: 25.3-31.2°C

Depth: 1-35m

Habitat Generalization Index: 1.73

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: Widespread (59.2% 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: Many (13 per transect)

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

Edit by: Joe Shields