Sharks
Tasselled Wobbegong
Eucrossorhinus dasypogon · Cartilaginous fish — family Orectolobidae
Half the pleasure of a tasselled wobbegong is the moment of resolution: what read as a patch of algae-furred reef assembles itself into a shark — flattened, marbled in fawn and umber, chin frilled with weedy tassels, eyes like slits in upholstery. Raja Ampat made it famous; nearly every site there hides one under a table coral, sometimes with its tail wedged in a barrel sponge and its head cocked toward passing fusiliers. The strike, if you're lucky enough to witness one, is a white blur and a shut mouth. It is camouflage elevated to a career, and a mascot for the strangeness of Coral Triangle diving.
Where and when to see one
"Resident" means most dives at that destination encounter them; "seasonal" means reliably present in the listed months; anything else is a bonus, not a plan.
| Destination | Reliability | Months | Notes |
|---|---|---|---|
| Raja AmpatIndonesia | Resident — seen on most dives | Year-round | |
| Milne BayPapua New Guinea | Resident — seen on most dives | Year-round | |
| Cairns & the Ribbon ReefsAustralia | Occasional | Year-round | |
| Kimbe BayPapua New Guinea | Occasional | Year-round |
Best month, at a glance
| Month | Reliable destinations |
|---|---|
| January | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| February | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| March | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| April | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| May | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| June | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| July | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| August | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| September | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| October | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| November | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
| December | Raja Ampat · Milne Bay · Cairns & the Ribbon Reefs · Kimbe Bay |
Understanding them
Habitat: Coral reefs — under table corals, inside barrel sponges, and on ledges, where it lies flattened and all but invisible
Range: The Coral Triangle's eastern arc: eastern Indonesia (Raja Ampat above all), Papua New Guinea, and northern Australia
Behavior: The definitive ambush shark. A fringe of branching dermal tassels erases its outline against coral, and it can lie unmoving for hours, luring fish with subtle tail movements before a strike faster than the eye. Mostly nocturnal on the move; by day divers find it coiled under plate corals.
Diet: Fish and crustaceans ambushed at point-blank range; capable of swallowing surprisingly large prey, including other sharks
Size: typically around 1.2 m; documented up to 1.8 m (total length).
How to behave around one
Never touch, lift, or drag one into the open; keep fingers off ledges you haven't scanned; give a walking wobbegong right of way at night.
Conservation
Least Concern, with most of its core range inside Indonesian and PNG reef systems; localized pressure comes from reef degradation and the aquarium trade.
Charted sites known for them
Watch
From the official channels
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
Videos are embedded links to their creators' own channels — we host nothing and credit everything.