Home · Microdesmidae · Spotback wormfish
Spotback wormfish (Microdesmus dorsipunctatus) — Microdesmidae

Spotback wormfish

Microdesmus dorsipunctatus
Family: Microdesmidae
DD · Data Deficient

The Spotback wormfish (Microdesmus dorsipunctatus) is a saltwater fish of the family Microdesmidae that grows up to 9 cm.

Length
9 cm
Water
Saltwater
Depth
0.0–1.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Snake-like
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Not eaten

Description

The spotback wormfish is a small, worm-shaped fish of the wormfish family (Microdesmidae) from the eastern Pacific. The species grows to about 9 cm and has a very elongate, snake-like body with small eyes, a long low dorsal fin and a row of dark spots along the back, to which the name refers. It inhabits mud and sand bottoms near the shore, where it stays largely hidden in self-dug burrows. As a small bottom dweller it feeds on small zooplankton and small invertebrates. Owing to its hidden habits it is little seen; it is assessed as Data Deficient (DD). Owing to its small size it is harmless to humans.

Frequently asked questions

How do you recognise the Spotback wormfish?

The Spotback wormfish has a snake-like body, is mainly brown and shows a spots pattern.

Where does the Spotback wormfish live?

The Spotback wormfish lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Spotback wormfish get?

The Spotback wormfish grows to a maximum of about 9 cm.

Is the Spotback wormfish dangerous to humans?

No, the Spotback wormfish is harmless to humans.

Is the Spotback wormfish edible?

The Spotback wormfish is not usually eaten.

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →

All data

Identification

Dutch name
Stippelrug-wormvis sourced
English name
Spotback wormfish verified
Scientific name
Microdesmus dorsipunctatus
Family
Microdesmidae

Appearance

Size class
Small verified
Max length (cm)
9 sourced
Body shape
Snake-like sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
1.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Microdesmus

More from the family Microdesmidae

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →