Aploactisoma milesii
Small, well-camouflaged scorpionfish logged mostly in Victoria, Australia, in cool 13.6-21.8C water year-round.
Safety warning
Like other scorpionfish, it carries venomous spines along its fins, and its camouflage means divers can brush against it without ever seeing it there. Keep hands and knees off rock and weed you haven't checked, and if you spot one, admire it from a short distance rather than steadying yourself nearby.
If you're stung
Venomous spinesGeneral first-aid guidance, not a substitute for professional medical care. In an emergency, call your local emergency number.
Grows to about 16cm and looks more like a scrap of drifting algae than a fish, with a lumpy, compressed body covered in loose, velvety skin flaps that break up its outline. Colour runs through mottled reds, browns and greens depending on the reef it is sitting on, giving it strong camouflage against sponge and weed. It has no obvious stripes or bright markings, so divers key on the ragged, leaf-like body shape and slow, almost motionless posture rather than colour.
Divers find it sitting still on rock, sponge or weed-covered reef, relying on camouflage rather than flight to avoid attention. It rarely swims off when approached, instead staying pressed against its perch, so a slow, careful scan of textured reef surfaces is how most divers actually spot one. Most logs describe it as an uncommon find rather than something seen on every dive.
Its skin is covered in small, fleshy flaps and lacks the hard scales most fish rely on, which is part of why it blends so completely into weedy or sponge-covered reef.
Sightings show no clear seasonal pattern, and it turns up year-round in water from about 13.6 to 21.8C, so any time you're diving Victoria's temperate reefs is worth a look.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
This is a cool-temperate Australian speciality, most reliably logged around Victoria, with additional sightings in New South Wales and Western Australia. Victoria's reef and sponge sites account for the large majority of records, making it the place to focus a search.
Mapping where Little Velvetfish is logged…
They're most consistently found in Victoria, Australia, with smaller numbers of sightings in New South Wales and Western Australia. Victoria's temperate reef sites are by far the strongest bet.
There's no strong seasonal pattern in the sightings, and they're logged across a wide temperature range from about 13.6 to 21.8C, so they can turn up on Victorian reef dives at any time of year.
Yes, they carry venomous spines like other scorpionfish, and their camouflage makes accidental contact the main risk. Avoid putting hands or knees on unchecked reef surfaces and you'll steer clear of trouble.
Look for a small, lumpy fish around 16cm long with ragged, velvety skin flaps that mimic algae or sponge. It has no bold stripes or colours, sits motionless on the reef, and relies entirely on blending in rather than bright markings.
They reach around 16cm in length, making them a small, easy-to-overlook reef fish rather than a showy centrepiece sighting.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Madeira Rockfish
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