Blotched Tripodfish

Pseudotriacanthus Strigilifer
Blotched Tripodfish - Marinewise © 2026 MarineWise

Quick Facts

Scientific namePseudotriacanthus Strigilifer
Other namesLongspined Tripodfish
SizeUp to 25 cm (9.84 in)
WeightUp to .30 kg (.66 lb)
FamilyTripodfish / Triacanthidae

Distribution

Habitat & AU DistributionCoastal & brackish waters, estuaries amongst sandy, silty & muddy areas
Depth RangeUp to 50 m (165 ft)
Blotched Tripodfish Distribution
Species Interaction

Snorkeling & Diving

The Blotched Tripodfish is a master of disguise in northern Australia’s shallows. Snorkel over a sandy estuary or coastal flat, and it might be right beneath you — silvery-grey, splashed with golden blotches, lying perfectly still against the seabed. They’re shy, solitary foragers, but spotting one in the wild is a true highlight for keen-eyed divers and snorkellers.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Tetraodontiformes

Family: Triacanthidae

Genus: Pseudotriacanthus

Species: Pseudotriacanthus Strigilifer

Conservation Status

The conservation status of the Blotched Tripodfish is currently listed as Least Concern by the IUCN. This reflects its wide Indo–West Pacific distribution, adaptability to coastal and estuarine habitats, and low targeted fishing pressure. However, habitat degradation from pollution, sedimentation, and coastal development could pose future risks. Limited monitoring means population trends are not well understood, making ongoing observation important for its long-term stability.

How to catch
Blotched Tripodfish

Catch Difficulty: Easy

Tackle: Running sinker rig

Bait: Crab, Prawns, Squid, Worms, Yabbies

Technique: Fish bait on the bottom

Popularity: Mostly caught as bycatch

Blotched Tripodfish
As Aquarium Fish

Care Level: Easy to moderate

Temperament: Peaceful

Diet: Carnivore

Reef Compatible: No

Minimum Tank Size: 70 gallons

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Peaceful

Location: Seagrass Beds, Sandflats

Danger: Dorsal & Pectoral Spine