HomeFish encyclopediaRay-finned fishesPerch-like fishPike-, tube- and flagblenniesEelgrass blenny Eelgrass blenny (Stathmonotus stahli) Scientific name: Stathmonotus stahli Evermann & Marsh, 1899 The Eelgrass blenny (Stathmonotus stahli) is a marine fish of the family Chaenopsidae. Native range: Eastern Caribbean Sea from Los Roques Venezuela, Lesser Antilles to Puerto Rico. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 43-44; Anal spines: 2; Anal soft rays: 24 - 25. Stathmonotus stahli differs from Stathmonotus tekla in the following: segmented caudal rays 11-13, modally 12 (vs. 10-12, modally 11); dorsal-fin spines 41-45, modally 43 (vs. 39-44, modally 42); and precaudal vertebrae 17-19, modally 18 (vs. 16-19, modally 17).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStathmonotus stahliFamilyChaenopsidae (Pike-, tube- and flagblennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.0Depth range10 m (33 ft)EnvironmentMarine; reef-associated; depth range ? - 10 mClimateSubtropicalDistributionEastern Caribbean Sea from Los Roques Venezuela, Lesser Antilles to Puerto Rico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026