Phenacostethus

Phenacostethus is a genus of fishes in the family Phallostethidae found in freshwater and brackish habitats in southeast Asia.

Species
The currently recognized species in this genus are:
 * Phenacostethus posthon T. R. Roberts, 1971
 * Phenacostethus smithi G. S. Myers, 1928 (Smith's priapium fish)
 * Phenacostethus trewavasae Parenti, 1986
 * Phenacostethus sikat Parenti, Lumbantobing & Haryono, 2023