Grammonus yunokawai
Grammonus yunokawai, also known as Yunokawa's brotula, is a small marine cusk‑eel reaching just under 10 cm. It inhabits reef crevices and rocky substrates, making it a rarely targeted species for anglers.
Family
Bythitidae
Max Size
9.8 cm
Habitat
marine
Climate
temperate
Best Season
Year‑round in tropical regions, with slight peaks in warmer months
Best Time
Dawn and dusk, with increased activity at night
No distribution map available
Okinawa Main Reef
JapanRenowned for its diverse reef fauna, the Grammonus yunokawai is commonly found in the crevices of the main reef around Okinawa Island.
Best: May to September
Palau Barrier Reef
PalauThe extensive barrier reef systems host abundant populations of Grammonus yunokawai, especially in the shallow drop-offs near Koror.
Best: June to October
Great Barrier Reef – Lizard Island
AustraliaLizard Island's outer reef provides ideal habitats with plenty of crevices where this clingfish thrives.
Best: October to December
Maldives – North Atolls
MaldivesThe coral outcrops of the North Atolls are known hotspots for Grammonus yunokawai, attracting specialists during the dry season.
Best: January to April
Red Sea – Ras Mohammed National Park
EgyptRas Mohammed's steep walls host hidden pockets where the species is often sighted, though catching requires targeted effort.
Best: March to May
Fiji – Yasawa Islands
FijiThe Yasawa Islands' reefs have a healthy population of Grammonus yunokawai, making it a bucket‑list spot for dedicated anglers.
Best: July to September
Best bait: Live shrimp or small amphipods