HomeFish encyclopediaRay-finned fishesPerch-like fishCombtooth blenniesPallid rockskipper Pallid rockskipper (Istiblennius unicolor) Scientific name: Istiblennius unicolor R?ppell, 1838 The Pallid rockskipper (Istiblennius unicolor) is a marine fish of the family Blenniidae. Native range: Western Indian Ocean, endemic to the Red Sea; from northernmost Gulf of Aqaba, south to Dahlak Archipelago in the southern Red Sea. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 17-18; Anal spines: 2; Anal soft rays: 17 - 19Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameIstiblennius unicolorFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.2EnvironmentMarine; demersalClimateTropicalDistributionWestern Indian Ocean: endemic to the Red Sea; from northernmost Gulf of Aqaba, south to Dahlak Archipelago in the southern Red Sea.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