Imposter Fangblenny

Plagiotremus phenax

The Imposter fangblenny, known scientifically as Plagiotremus phenax, is a reef fish found in the tropical waters of the Indian Ocean. This species is known for its unique mimicry, resembling the disco blenny, Meiacanthus smithi, which helps it evade predators. Divers can identify this blenny by its pale grey body and the distinctive black submarginal stripe on its dorsal fin. It reaches a maximum length of 8 centimeters. This blenny is typically found in coral reefs, inhabiting depths of 1 to 10 meters. It is a solitary fish, often seen alone in coastal, lagoon, and outer reef environments. The Imposter fangblenny is oviparous, with eggs that are demersal and adhesive, attaching to substrates via a filamentous pad. The larvae are planktonic and are frequently found in shallow coastal waters. Divers encountering the Imposter fangblenny may notice its solitary nature and its ability to blend into its surroundings. Although it is not a common sight at every dive site, it has been recorded in areas near DiveSight dive sites. The species is listed as Least Concern on the IUCN Red List.