Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

Firetip Nudibranch

Trinchesia sibogae


Also referred to as Cuthona sibogae in some circles. This aeolid nudibranch has yellow-and-purple-tipped cerata, the rest of which is the same lighter hue as its dorsum. The slender, tapering rhinophores are also a deep shade of purple. The oral tentacles are more violet in color.


Spotted this beauty inside a cave (off the southern coast of Big Ligid Island, Samal, Philippines) at a depth of 18m. It was on a hydroid, apparently feeding. It measured about 3cm long.

No species ID suggestions


Blogie 6 years ago

@ceherzog -- Trinchesia and Flabelllina nudibranchs seem to really like hydroids. ;)

ceherzog 6 years ago

I've never seen one in situ but I really, really want to...this is a beauty!

Blogie 6 years ago

Thanks, Patty!

patty 6 years ago

Lovely spotting and series Blogie =)

Blogie 6 years ago

Dank je wel, AnnvanWijgerden! :)

AnnvanWijgerden 6 years ago

Wow wow wow! Supremely beautiful!!!

Davao Del Norte, Philippines

Lat: 7.16, Long: 125.78

Spotted on Jul 11, 2012
Submitted on Jul 12, 2012

Related spottings

Siboga Trinchesia Yamasus Trinchesia Nudibranch Aeolid Nudibranch

Nearby spottings

Slender Sapsucking Slug Kuni's Nudibranch Banded Bubble Star Disc Coral