HomeFish encyclopediaRay-finned fishesPerch-like fishPricklebacksThreeline prickleback Threeline prickleback (Esselenichthys carli) Scientific name: Esselenichthys carli Follett & Anderson, 1990 The Threeline prickleback (Esselenichthys carli) is a marine fish of the family Stichaeidae. Native range: Eastern Central Pacific, Pacific Grove, California to Bah?a San Quint?n, Baja California Norte, Mexico. BiologyDorsal spines (total): 38 - 43; Dorsal soft rays (total): 19-23; Anal soft rays: 44 - 49; Vertebrae: 65 - 70. First dorsal spine associated with second pterygiophore; first anal pterygiophore equal in size to second; ventrolateral lateral line connected across breast in an arc that is bisected by a medio ventral lateral line extending from isthmus to fork about anus. Caudal fin rounded.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEsselenichthys carliFamilyStichaeidae (Pricklebacks)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length17.1Depth range1–26 m (3–85 ft)EnvironmentMarine; demersal; depth range 1 - 26 mClimateSubtropicalDistributionEastern Central Pacific: Pacific Grove, California to Bah?a San Quint?n, Baja California Norte, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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