Aspidontus dussumieri

Lance blenny | Dussumier's Blenny | Floating Blenny | Slender Sabretooth Blenny
Aspidontus dussumieri
Aspidontus dussumieri, NSW, Australia, Photo: Ian Shaw
Aspidontus dussumieri
Aspidontus dussumieri, NSW, Australia, Photo: Andrew Green
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Aspidontus dussumieri
Aspidontus dussumieri


Temperate Australasia, Tropical Indo-Pacific


Elongate grey body, pointed snout, black stripe through eye to tip of tail base with a white stripe below. Yellowish dorsal and anal fins with narrow dark margins. Lacks distinct light stripe along dorsal fin base as on Plagiotremus rhinorhynchos (Bluestriped Fangblenny).


Max Size: 12 cm

Sea Temperature Range: 14.8-29.4°C

Depth: 1-20m

Habitat Generalization Index: 1.77

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: Joe Shields