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Knifetooth sawfish (Anoxypristis cuspidata) — Pristidae

Knifetooth sawfish

Anoxypristis cuspidata
Family: Pristidae
CR · Critically Endangered

The Knifetooth sawfish (Anoxypristis cuspidata) is a fish that lives in both fresh and salt water of the family Pristidae that grows up to 470 cm.

Length
470 cm
Water
Euryhaline
Depth
0.0–40.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Range
Indo-West Pacific; inshore, river mouths and estuaries.
Edibility
Commonly eaten

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Description

The knifetooth sawfish is a sawfish (Pristidae), a shark-like ray with a long, flat, tooth-studded saw-shaped snout. It lives inshore in the Indo-West Pacific, often in river mouths and estuaries. With the saw, which is full of electrical sensors, it detects prey and stuns schools of fish. It gives birth to live young and is critically endangered through bycatch and habitat loss. The toothed saw can inflict severe injuries when the animal thrashes.

Frequently asked questions

How do you recognise the Knifetooth sawfish?

The Knifetooth sawfish has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Long, toothed saw-like snout full of electric sensors; critically endangered ovoviviparous sawfish.

Where does the Knifetooth sawfish live?

The Knifetooth sawfish lives in both fresh and salt water and is mostly found around mixed bottom. Indo-West Pacific; inshore, river mouths and estuaries.

How big does the Knifetooth sawfish get?

The Knifetooth sawfish grows to a maximum of about 470 cm.

Is the Knifetooth sawfish dangerous to humans?

No, the Knifetooth sawfish is harmless to humans. The long, tooth-studded saw-shaped snout can inflict severe cuts and slashes when the animal thrashes or is cornered. Keep well clear of a caught or entangled animal; for a wound, control bleeding and seek urgent medical care.

Is the Knifetooth sawfish edible?

Yes, the Knifetooth sawfish is commonly eaten.

More photos

Knifetooth sawfish (Anoxypristis cuspidata) — Pristidae — 2
Wikimedia Commons — CSIRO National Fish COllection (CC BY 1.0)
Knifetooth sawfish (Anoxypristis cuspidata) — Pristidae — 3
iNaturalist ((c) bridgetnolan, some rights reserved (CC BY-NC))
Knifetooth sawfish (Anoxypristis cuspidata) — Pristidae — 4
Wikimedia Commons — Sir Francis Day (1829–1889) (Public domain)
Knifetooth sawfish (Anoxypristis cuspidata) — Pristidae — 5
Wikimedia Commons — Hamid Badar Osmany (CC BY 3.0)
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All data

Identification

English name
Knifetooth sawfish verified
Scientific name
Anoxypristis cuspidata
Family
Pristidae
Other names
Knifetooth sawfish; Narrow sawfish; Pointed sawfish; Sawfish; Pointed saw-fish; Saw fish; Saw shark verified

Appearance

Size class
Extra large verified
Max length (cm)
470.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Crescent (lunate) inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
40.0 verified
Natural range
Indo-West Pacific; inshore, river mouths and estuaries. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Schooling fishes and benthic invertebrates, tracked down with the saw 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
Long, toothed saw-like snout full of electric sensors; critically endangered ovoviviparous sawfish. sourced

For anglers

Edibility
Commonly eaten sourced
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 long, tooth-studded saw-shaped snout can inflict severe cuts and slashes when the animal thrashes or is cornered. Keep well clear of a caught or entangled animal; for a wound, control bleeding and seek urgent medical care. sourced

Status & sources

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

More from the family Pristidae

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