Canthigaster papua
A small orange-spotted puffer common on reefs in the Visayas and Sulawesi, seen year-round in 26-29 C water.
A small, stocky puffer around 7 cm, pale tan to olive with dense orange-brown spots covering the head and body. The giveaway is the dark blotch ringed in blue near the base of the tail, a false eyespot that draws attention away from its real, much smaller eye. It hovers just above the reef rather than swimming in open water, with a blunt snout and the slow, almost hesitant paddling typical of pufferfish.
Usually spotted picking around coral rubble and reef crevices alone or in loose pairs, moving in short unhurried bursts rather than cruising. It is not shy exactly, but it tends to hold its distance and duck behind coral heads if you close in too fast, so a slow approach gets you the better look. Most sightings are logged during the day on shallow to mid-depth reef, from around 6 metres down to 50.
That tail-end blotch is a real decoy eyespot, a classic pufferfish trick that can confuse a predator into striking the wrong end of the fish, buying it a split second to flee.
No clear seasonal pattern shows up in the data, and with a comfortable range of 26.4 to 28.9 C, it sits on tropical reefs year-round, so any month works in its core range.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
Most reliably logged in the Philippines, especially across the Visayas, and in Indonesia, with Sulawesi and Raja Ampat both strong areas. Smaller but consistent numbers turn up in Timor-Leste around Dili, Papua New Guinea near Tufi, and occasionally in Malaysia, Australia and Vietnam.
Mapping where False-eyed Puffer is logged…
It shows up most often on reefs in the Philippine Visayas and Indonesia's Sulawesi, with good numbers also in Raja Ampat and around Dili in Timor-Leste. Smaller populations are logged in Papua New Guinea, Malaysia, Australia and Vietnam.
There is no strong seasonal signal in sightings, so it is essentially a year-round find on tropical reefs where water stays between roughly 26 and 29 C.
Look for a small, rounded puffer covered in orange-brown spots with a dark, blue-ringed false eyespot near the tail base. It hovers close to the reef and moves in slow, short bursts rather than swimming fast in open water.
They stay small, typically around 7 cm, making them an easy fish to overlook unless you are scanning rubble and coral crevices closely.
The dark blotch near its tail mimics an eye, aiming to trick predators into attacking the wrong end of the fish and giving it a better chance to escape.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Valentini Pufferfish
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