Salarias segmentatus
A tiny reef blenny common on the rubble and rock of Koror & Malakal, Palau, in water around 27 to 29C year-round.
A small blenny, around 8 cm, with a stocky, tapering body that sits propped on its pectoral fins against the substrate rather than swimming in open water. Look for a banded or segmented pattern of dark blotches running down a mottled brown-to-olive body, and a blunt head with a pair of small cirri (hair-like tufts) above the eyes. It rests motionless on rock or rubble for long stretches, which is often the giveaway before the pattern registers.
Spends most of its time perched still on rock, rubble or dead coral, blending into the texture rather than cruising the reef. It tends to hold its ground when divers approach slowly, darting only a short distance if crowded, then settling again nearby. Most sightings come from divers working slow, close looks along the bottom rather than mid-water passes.
Like other blennies in this family, it likely grazes algae and detritus off rock surfaces with a comb-like set of teeth, which is why you find it parked over encrusted substrate rather than swimming the reef face.
No clear season shows up in the sightings, and with water sitting comfortably between 27.4 and 29.3C year-round in these regions, it is a fair bet on any dive regardless of month.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
Most reliably logged around Koror & Malakal in Palau, with additional sightings through the Rock Islands, making Palau the strongest bet for this species. It also turns up consistently across Sulawesi, Indonesia, so divers working either the Palau rock islands or Indonesian coral coasts have a real shot at finding one.
Mapping where Segmented Blenny is logged…
The best odds are in Palau, especially around Koror & Malakal and the Rock Islands, where it shows up as a common to very common find. Sulawesi in Indonesia is the other strong region for this species.
There is no strong seasonal pattern in the sightings, and it lives in consistently warm water around 27 to 29C, so it is present on these reefs throughout the year.
Look for a small, roughly 8 cm blenny perched still on rock or rubble, with a mottled brown body broken into darker bands or segments and small cirri above the eyes. Its habit of resting motionless rather than swimming is often the first clue.
It stays small, typically around 8 cm as an adult, which is fairly standard for reef blennies of this type.
No, it poses no danger to divers. It is a small, sedentary reef fish that holds still or retreats a short distance if approached, with no bite or sting risk to people.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Klipfish
1,860 sites
