Meiacanthus ditrema

Schooling Fangblenny | Doublepore Fangblenny | One-striped Poison-fang Blenny | Schooling Harp-tail | Schooling Harptail Blenny | Two-striped Fangblenny
Meiacanthus ditrema
Meiacanthus ditrema, Photo: Graham Edgar
Meiacanthus ditrema
Meiacanthus ditrema, QLD, Australia, Photo: Rick Stuart-Smith
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Meiacanthus ditrema
Meiacanthus ditrema


Tropical Indo-Pacific


Pale with two black stripes along body, lower stripe formed by two stripes on head joining on operculum. Forms small stationary schools above coral heads, resembling juvenile Cardinal fishes.


Max Size: 6 cm

Sea Temperature Range: 23.1-29.7°C

Depth: 0-18m

Habitat Generalization Index: 0.9

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 (4.8% 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: Many (36 per transect)

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

Edit by: Joe Shields