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Crocodile flathead (Cociella crocodilus) — Platycephalidae

Crocodile flathead

Cociella crocodilus

The Crocodile flathead (Cociella crocodilus) is a brackish-water fish of the family Platycephalidae that grows up to 50 cm.

Length
50 cm
Water
Brackish
Depth
0.0–300.0 m
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Range
Asia: Australia, Solomon Is., Myanmar, Sri Lanka, China, Taiwan/Ch Taipei and others

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Description

The crocodile flathead is a flathead (Platycephalidae) from coastal and brackish water of the Indo-West Pacific. The species grows to about 50 cm and has a flattened, rearward-tapering, brown-mottled body with a broad, flat, crocodile-like head and eyes on top. As an ambush hunter it lies half-buried on sand and mud bottoms and snaps at lightning speed at passing shrimp and small fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Crocodile flathead?

The Crocodile flathead has an elongate, eel-like body, is mainly brown and shows a spots pattern.

Where does the Crocodile flathead live?

The Crocodile flathead lives in brackish water and is mostly found around stony or rocky ground. Asia: Australia, Solomon Is., Myanmar, Sri Lanka, China, Taiwan/Ch Taipei and others

How big does the Crocodile flathead get?

The Crocodile flathead grows to a maximum of about 50 cm. On average the species is around 40 cm.

Is the Crocodile flathead dangerous to humans?

No, the Crocodile flathead 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.

More photos

Crocodile flathead (Cociella crocodilus) — Platycephalidae — 2
iNaturalist ((c) akio.suzuki, some rights reserved (CC BY-NC))
Crocodile flathead (Cociella crocodilus) — Platycephalidae — 3
Randall, John E. (CC0 1.0) via GBIF — USNM
Crocodile flathead (Cociella crocodilus) — Platycephalidae — 4
Wikimedia Commons — Roland Unger (CC BY-SA 3.0)
Crocodile flathead (Cociella crocodilus) — Platycephalidae — 5
iNaturalist ((c) taiwan_habu, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Crocodile flathead sourced
Scientific name
Cociella crocodilus
Family
Platycephalidae
Other names
Crocodile flathead; Flathead; Spotted flathead verified

Appearance

Size class
Large verified
Max length (cm)
50.0 verified
Average length (cm)
40.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Straight inferred

Habitat & distribution

Water type
Brackish sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
300.0 verified
Natural range
Asia: Australia, Solomon Is., Myanmar, Sri Lanka, China, Taiwan/Ch Taipei and others sourced
Origin
Native inferred

Behaviour & biology

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
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. 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

Same genus Cociella

More from the family Platycephalidae

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