Rhinecanthus verrucosus

Blackpatch Triggerfish | Black-blotch Triggerfish | Blackbelly Picassofish | Blackbelly Triggerfish
Rhinecanthus verrucosus
Rhinecanthus verrucosus, Raja Ampat, Indonesia, Photo: Graham Edgar


Tropical Indo-Pacific


Thin red stripe running back from mouth, vertical bar with pale blue margin extending through eye, dark rounded patch on rear belly, and rows of small black spines along tail base. Like other Rhinecanthus species, difficult to closely approach as quickly retreats into holes.


Max Size: 23 cm

Sea Temperature Range: 18.4-31.9°C

Depth: 1-20m

Habitat Generalization Index: N/A

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: Rare (0.8% 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: Solitary (1 per transect)

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

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