Impostor goby (Ctenogobius phenacus), first described by Pezold & Lasala S., 1987 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 3.20 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 2 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 1; Anal soft rays: 12. Eyes not reduced. In both sexes, the large jaw reaching posteriorly from one-half the diameter of the orbit to the end margin of the orbit. Upper part of the sides of the trunk with shoulder patch of melanophores and diagonal bars forming a V pattern. Ocelli on body and head absent. Tail elongated.: fusiform / normal.
Behavioural data for Impostor goby is currently being reviewed.
Marine; brackish; demersal; depth range 0 - 2 m . Tropical Southwest Atlantic: Puerto Cabello, Venezuela, mouth of Corantijn River in Surinam, and mouths of Cayenne and the Mahury rivers in French Guiana.
The following diseases are known to affect Impostor goby.
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