Cristiceps aurantiacus
Small, spiky-headed and easy to miss: find out where North Island divers log Crested Weedfish and what to look for.
A small, slender fish, around 15 cm long, with a mottled orange, brown and cream body that blends into weed and algae-covered rock. The giveaway is the pair of branched, feathery crests (tentacle-like growths) rising off the top of the head, which is what separates it from most other small reef fish sharing the same habitat. It tends to sit still or move in short bursts along the substrate rather than swimming freely in open water.
Look for it perched motionless on weedy rock or tucked into algae and low reef structure, using its mottled colouring to disappear against the background rather than fleeing. It is logged as uncommon to rare at most sites, so finding one usually means slow, close-focus searching along the bottom rather than expecting it to swim out to greet you. Divers who move carefully and check crevices and weed patches rather than mid-water tend to have better luck.
Those branched head crests are not just decoration, they help break up the fish's outline against algae and weed, making an already well-camouflaged fish even harder to pick out on a casual pass.
There is no clear seasonal pattern in the sightings, so treat it as a year-round find on North Island reefs. Observed water temperatures range from about 15.9 to 23.3 C, which covers most of the annual range there, so a cooler winter dive is just as likely to turn one up as a summer one.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
Every logged sighting in the data comes from New Zealand, with the North Island the clear stronghold for this species. If you are diving reefs and rocky reef edges around the North Island, this is the region to search, rather than further afield where it has not been recorded.
Mapping where Crested Weedfish is logged…
All recorded sightings come from New Zealand, concentrated around the North Island. It has not been logged elsewhere, so North Island rocky reefs and weedy sites are the place to look.
There is no strong seasonal signal in the sightings, so it is considered a year-round species on North Island reefs. It has been recorded in water from roughly 15.9 to 23.3 C, spanning cooler and warmer parts of the year.
Look for a small, mottled orange-brown fish around 15 cm long sitting still on weedy rock, with distinctive branched crests on top of the head. Its camouflage means slow, close searching works better than scanning open water.
They are small reef fish, typically reaching around 15 cm in length, which combined with their camouflage makes them easy to swim straight past.
Sighting logs mark them as uncommon at most sites where they occur and rare at others, so seeing one takes a bit of patient looking rather than a guaranteed encounter. They are not considered abundant anywhere in the recorded data.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Klipfish
1,860 sites
