Pterocaesio trilineata

Threestripe Fusilier | Striped Fusilier | Three-lined Fusilier
Pterocaesio trilineata
Pterocaesio trilineata, Northern WA, Australia, Photo: Andrew Green
Pterocaesio trilineata
Pterocaesio trilineata, Coffs Harbour, NSW, Photo: Ian Shaw
Pterocaesio trilineata
Pterocaesio trilineata, With P tile. North WA, Australia, Photo: Andrew Green
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Pterocaesio trilineata
Pterocaesio trilineata
Pterocaesio trilineata


Tropical Indo-Pacific


Slender silvery body with three dark green-brown stripes along upper body, and small dark tail tips. Often schools with other fusiliers.


Max Size: 20 cm

Sea Temperature Range: 23.1-31.3°C

Depth: 1-30m

Habitat Generalization Index: 6.25

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: Frequent (11.8% 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 (72 per transect)

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

Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland