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Longnose pygmy shark (Heteroscymnoides marleyi) — Dalatiidae

Longnose pygmy shark

Heteroscymnoides marleyi
Family: Dalatiidae

The Longnose pygmy shark (Heteroscymnoides marleyi) is a saltwater fish of the family Dalatiidae that grows up to 29 cm.

Length
29 cm
Water
Saltwater
Depth
0.0–502.0 m
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless

Description

The longnose pygmy shark is a very small deep-sea shark (Somniosidae) that is widespread but rarely seen in the cool southern oceans. The species grows to about 29 cm and has a dark, cigar-shaped body with a relatively long snout and light-producing organs on the belly. It lives in the deep water column of the open ocean and migrates to shallower water at night to hunt small fish and squid. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Longnose pygmy shark?

The Longnose pygmy shark has an elongate, eel-like body and is mainly black.

Where does the Longnose pygmy shark live?

The Longnose pygmy shark lives in the sea (marine waters) and is mostly found around mixed bottom.

How big does the Longnose pygmy shark get?

The Longnose pygmy shark grows to a maximum of about 29 cm.

Is the Longnose pygmy shark dangerous to humans?

No, the Longnose pygmy shark is harmless to humans.

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All data

Identification

Dutch name
Langsnuit-dwerghaai sourced
English name
Longnose pygmy shark sourced
Scientific name
Heteroscymnoides marleyi
Family
Dalatiidae

Appearance

Size class
Medium verified
Max length (cm)
29.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Black sourced
Tail shape
Straight inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
502.0 verified
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

More from the family Dalatiidae

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