The Smith's priapiumfish (Phenacostethus smithi) is a brackish-water fish of the family Phallostethidae that grows up to 2 cm.
Description
Smith's priapiumfish is a tiny priapiumfish (Phallostethidae) from fresh and brackish water of Southeast Asia. The species grows to only about 2 cm and has a translucent, slender body; remarkably the male carries a complex copulatory organ ('priapium') under the throat, so fertilisation is internal. As a social fish it hovers in schools just below the surface of calm waters and snaps at microscopic zooplankton. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Smith's priapiumfish?
The Smith's priapiumfish has an elongate, eel-like body and is mainly silver-grey.
Where does the Smith's priapiumfish live?
The Smith's priapiumfish lives in brackish water and is mostly found around open water. Asia: Cambodia, Indonesia, Malaysia, Thailand
How big does the Smith's priapiumfish get?
The Smith's priapiumfish grows to a maximum of about 2 cm.
Is the Smith's priapiumfish dangerous to humans?
No, the Smith's priapiumfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Want the complete picture on the Smith's priapiumfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Smith's priapiumfish is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Phallostethidae

Want the complete picture on the Smith's priapiumfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Smith's priapiumfish is one of 12,519 species in the app.