HomeFish encyclopediaRay-finned fishesPerch-like fishCombtooth blenniesBlue-spotted blenny Blue-spotted blenny (Blenniella caudolineata) Scientific name: Blenniella caudolineata G?nther, 1877 The Blue-spotted blenny (Blenniella caudolineata) is a marine fish of the family Blenniidae. BiologyDorsal spines (total): 12 - 14; Dorsal soft rays (total): 19-22; Anal spines: 2 - 3; Anal soft rays: 20 - 23; Vertebrae: 37 - 40. Females have numerous longitudinal pinstripes on their sides and black specks on their fins while males have dark patches and small blue spots on their sides.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBlenniella caudolineataFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.2EnvironmentMarine; reef-associatedClimateTropicalDistributionPacific Ocean: southern Japan to the Moluccas, east to Mariana Islands, Tonga, and Tuamoto Archipelago; Tawara, Kiribati and Howland Island. Replaced by Blenniella cyanostigma in the Indian Ocean.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