HomeFish encyclopediaRay-finned fishesPerch-like fishPike-, tube- and flagblenniesWhiteback signal blenny Whiteback signal blenny (Emblemaria nivipes) Scientific name: Emblemaria nivipes Jordan & Gilbert, 1883 The Whiteback signal blenny (Emblemaria nivipes) is a marine fish of the family Chaenopsidae. Native range: Eastern Central Pacific, Costa Rica, including Cocos Island to Panama and Gorgona Island, Colombia. BiologyInhabits empty mollusk tubes on sand-rubble bottoms. Feeds on zooplankton.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEmblemaria nivipesFamilyChaenopsidae (Pike-, tube- and flagblennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.2Depth range5–30 m (16–98 ft)EnvironmentMarine; demersal; depth range 5 - 30 mClimateTropicalDistributionEastern Central Pacific: Costa Rica, including Cocos Island to Panama and Gorgona Island, Colombia.Conservation status (IUCN)Data deficient (DD)Threat 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