HomeFish encyclopediaRay-finned fishesPerch-like fishCombtooth blenniesVariable sabretooth blenny Variable sabretooth blenny (Petroscirtes variabilis) Scientific name: Petroscirtes variabilis Cantor, 1849 The Variable sabretooth blenny (Petroscirtes variabilis) is a marine fish of the family Blenniidae. Native range: Indo-West Pacific, Sri Lanka to Fiji, north to southern Taiwan and the Yaeyama Islands, south to the southern Great Barrier Reef. BiologyDorsal spines (total): 10 - 11; Dorsal soft rays (total): 16-19; Anal spines: 2; Anal soft rays: 16 - 19. Sexually dimorphic: males are orange-brown while females are sea-green dorsally and lighter below. Similar to P. breviceps in shape but has a blotched, rather than lined pattern on the body. Some color form are probably habitat related. The plain form is mainly green and has numerous tiny pearly spots and occurs in seagrass beds.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePetroscirtes variabilisFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentMarine; demersalClimateTropicalDistributionIndo-West Pacific: Sri Lanka to Fiji, north to southern Taiwan and the Yaeyama Islands, south to the southern Great Barrier Reef.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026