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Smith's priapiumfish (Phenacostethus smithi) — Phallostethidae

Smith's priapiumfish

Phenacostethus smithi

The Smith's priapiumfish (Phenacostethus smithi) is a brackish-water fish of the family Phallostethidae that grows up to 2 cm.

Length
2 cm
Water
Brackish
Behaviour
Schooling
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Range
Asia: Cambodia, Indonesia, Malaysia, Thailand

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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.

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All data

Identification

English name
Smith's priapiumfish sourced
Scientific name
Phenacostethus smithi
Family
Phallostethidae
Other names
Smith's priapium fish sourced

Appearance

Size class
Small verified
Max length (cm)
2.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Tail shape
Forked inferred

Habitat & distribution

Water type
Brackish sourced
Substrate
Open water sourced
Natural range
Asia: Cambodia, Indonesia, Malaysia, Thailand sourced
Origin
Native inferred

Behaviour & biology

Social behaviour
Schooling sourced
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
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. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

More from the family Phallostethidae

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