Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Blenniidae
(Combtooth blennies) > Blenniinae
Etymology: Petroscirtes: Latin, petra, -ae = stone + Greek, skirteo = to jump.
Environment / Climate / Range
Marine; reef-associated; depth range ? - 10 m (Ref. 48636). Tropical; 22°C - 28°C; 30°N - 30°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm SL male/unsexed; (Ref. 1602)
Indo-West Pacific: East Africa to Papua New Guinea, north to southern Japan, south to New Caledonia.
Inhabits coastal reefs and estuaries to depths of about 10 m (Ref. 48636). May also be found up to 15 m depth in coastal and lagoon reefs in sandy and weedy areas, and also takes shelter and nests inside small-necked bottles and abandoned worm tubes or shells (Ref. 90102). Occur in sandy areas among clumps of Sargassum or other seaweeds, feeding on small crustaceans, diatoms, and perhaps other plant material associated with such clumps. They use their fangs defensively and will not hesitate to bite if handled. Mimic of Meiacanthus grammistes, which like all species of that genus possesses a pair of large grooved fangs in the lower jaw with associated venom glands. These bites are used defensively and thus species of that genus are avoided by predators (Ref. 205). Papuan variety is also a possible mimic of Meiacanthus vittatus (Ref. 90102). Oviparous (Ref. 205). Males uses shells but also ring-top cans for nesting (Ref. 48636). Eggs are demersal and adhesive (Ref. 205).
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
Traumatogenic (Ref. 1602)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00150 - 0.00963), b=3.15 (2.93 - 3.37), based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.1 ±0.1 se; Based on diet studies.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .