Home · Ephippidae · Batfish
Batfish (Platax pinnatus) — Ephippidae

Batfish

Platax pinnatus
Family: Ephippidae

The Batfish (Platax pinnatus) is a saltwater fish of the family Ephippidae that grows up to 45 cm.

Length
45 cm
Water
Saltwater
Depth
15.0–30.0 m
Diet
Omnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Indo-Pacific; steep outer reef slopes and mangroves.
Edibility
Rarely eaten

Want the complete picture on the Batfish?

Get the app

Description

The pinnate batfish is a batfish (Ephippidae) from the Indo-Pacific. The species grows to about 45 cm and has a deep, strongly laterally compressed, disc-shaped body; striking are the juveniles, which are jet black with a bright orange margin around the whole body, presumably mimicking a toxic flatworm. Adults are usually solitary and live under overhangs of steep outer reef slopes to at least 20 m deep, while juveniles occur in mangroves and sheltered inner reefs. It feeds on algae, invertebrates and plankton. The species is harmless to humans.

Frequently asked questions

How do you recognise the Batfish?

The Batfish has a flattened, disc-shaped body, is mainly black and shows a plain pattern. Juveniles jet black with a bright orange margin, probably mimicking a poisonous flatworm.

Where does the Batfish live?

The Batfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific; steep outer reef slopes and mangroves.

How big does the Batfish get?

The Batfish grows to a maximum of about 45 cm.

Is the Batfish dangerous to humans?

No, the Batfish is harmless to humans. None required: this species is harmless to humans.

Is the Batfish edible?

The Batfish is rarely eaten.

More photos

Batfish (Platax pinnatus) — Ephippidae — 2
Wikimedia Commons — PilarMeca (CC BY-SA 3.0)
Batfish (Platax pinnatus) — Ephippidae — 3
iNaturalist ((c) Graham McMartin, some rights reserved (CC BY-NC))
Batfish (Platax pinnatus) — Ephippidae — 4
Wikimedia Commons — Bernard DUPONT from FRANCE (CC BY-SA 2.0)
Batfish (Platax pinnatus) — Ephippidae — 5
iNaturalist ((c) Mark Rosenstein, some rights reserved (CC BY-NC))
Fin

Want the complete picture on the Batfish?

Point your camera at the fish and Fin names the species in seconds. Free, and the Batfish is one of 12,519 species in the app.

Get the app →

All data

Identification

English name
Batfish verified
Scientific name
Platax pinnatus
Family
Ephippidae
Other names
Batfish; Butterfly-fish; Dusky batfish; Long-finned batfish; Pinnate batfish; Longfin batfish; Pinnate spadefish; Shaded batfish; Leaf-fish; Longfinned batfish; Round batfish; Spadefish verified

Appearance

Size class
Large verified
Max length (cm)
45.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Black inferred
Pattern
Plain inferred
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
15.0 verified
Max depth (m)
30.0 verified
Natural range
Indo-Pacific; steep outer reef slopes and mangroves. inferred
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Algae, invertebrates and plankton sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Juveniles jet black with a bright orange margin, probably mimicking a poisonous flatworm. sourced

For anglers

Edibility
Rarely eaten sourced
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 sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Platax

More from the family Ephippidae

Fin

Want the complete picture on the Batfish?

Point your camera at the fish and Fin names the species in seconds. Free, and the Batfish is one of 12,519 species in the app.

Get the app →
Is this the Batfish? Get the app