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Specklefin midshipman (Porichthys myriaster) — Batrachoididae

Specklefin midshipman

Porichthys myriaster
LC · Least Concern

The Specklefin midshipman (Porichthys myriaster) is a saltwater fish of the family Batrachoididae that grows up to 51 cm.

Length
51 cm
Water
Saltwater
Depth
0.0–126.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Eastern Pacific from California to Baja California, also reported from northern Peru; rocky and soft bottoms of coastal waters and bays.
Edibility
Rarely eaten

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Description

The specklefin midshipman (Porichthys myriaster) is a toadfish of the eastern Pacific, from California to Baja California, Mexico, with reports as far as northern Peru. It grows to 51 centimetres and lives on the bottom of rocky and soft areas, often in bays, from the intertidal zone to 126 metres. Distinctive are the numerous light-producing organs (photophores) on the underside, to which its name refers. The fish is mostly active at night and can make a humming or grunting sound to attract mates. The female attaches the eggs under a rock, after which the male guards eggs and young. Handle with care because of its spines.

Frequently asked questions

How do you recognise the Specklefin midshipman?

The Specklefin midshipman has an elongate, eel-like body, is mainly brown and shows a plain pattern. Numerous luminous photophores on the underside; makes humming sounds and is active mainly at night.

Where does the Specklefin midshipman live?

The Specklefin midshipman lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific from California to Baja California, also reported from northern Peru; rocky and soft bottoms of coastal waters and bays.

How big does the Specklefin midshipman get?

The Specklefin midshipman grows to a maximum of about 51 cm.

Is the Specklefin midshipman dangerous to humans?

No, the Specklefin midshipman is harmless to humans. The fin spines are venomous; a prick causes severe, burning pain. Clean the wound, immerse it for 30-90 minutes in water as hot as can be tolerated (about 45 C), and seek medical care if pain, swelling or infection persists.

Is the Specklefin midshipman edible?

The Specklefin midshipman is rarely eaten.

More photos

Specklefin midshipman (Porichthys myriaster) — Batrachoididae — 2
iNaturalist ((c) hyperiodic, some rights reserved (CC BY-NC))
Specklefin midshipman (Porichthys myriaster) — Batrachoididae — 3
iNaturalist ((c) fishandthings, some rights reserved (CC BY-NC))
Specklefin midshipman (Porichthys myriaster) — Batrachoididae — 4
iNaturalist ((c) Rachel Allingham, some rights reserved (CC BY))
Specklefin midshipman (Porichthys myriaster) — Batrachoididae — 5
iNaturalist ((c) Andrew Newmark, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Specklefin midshipman sourced
Scientific name
Porichthys myriaster
Family
Batrachoididae
Other names
Specklefin midshipman verified

Appearance

Size class
Large verified
Max length (cm)
51.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Rounded inferred
Mouth position
Superior (upward) sourced
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
Two separate sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
126.0 verified
Natural range
Eastern Pacific from California to Baja California, also reported from northern Peru; rocky and soft bottoms of coastal waters and bays. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes and crustaceans. sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal verified
Reproduction
Separate sexes verified
Sexual dimorphism
No inferred
Seasonality
The female attaches the eggs under a stone; the male guards the eggs and young. sourced
Special features
Numerous luminous photophores on the underside; makes humming sounds and is active mainly at night. verified

For anglers

Edibility
Rarely eaten inferred
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
The fin spines are venomous; a prick causes severe, burning pain. Clean the wound, immerse it for 30-90 minutes in water as hot as can be tolerated (about 45 C), and seek medical care if pain, swelling or infection persists. inferred

Status & sources

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

Same genus Porichthys

More from the family Batrachoididae

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