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Mototi Blue Ring Octopus

Octopus mototi


This octopus has one blue ring on either side of its head, which it displays to warn off potential predators. It can also change its color, as you can see in the 4th picture. It's said that this type of octopus is very rare.


Sandy and rubble areas of coral reefs, at depths of 1 to 40m.


Spotted this octopus at a depth of about 40 feet, during a day dive. It was about twice as big as my hand if it had its tentacles stretched out.

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Blogie 9 years ago

No, patty. The octopus was actually pretty tiny. But if it had its tentacles spread out in all directions then it would probably reach twice the size of my hand. This starfish was about 50% larger than my hand. :)

patty 9 years ago

What a magnificent octupus! Amazing! So, the octopus was about twice as big as your hand, that is to say: the starfish was enormous! =)

CourtneyVerk 9 years ago

What an awesome spotting! Thank you for sharing.

Nicholas4 10 years ago

Yea, We already know that the octopus in general, are a lot smarter than dogs and some scientists are wondering just how complex their intellect really is!! So, I guess this one is no exception..

Blogie 10 years ago

Thanks, Nicholas! Hmmm... No, I don't think the octopus and the sea star have any real symbiotic relationship. Perhaps the octopus was just trying to use the starfish as a shield against us pesky divers. :D

Nicholas4 10 years ago

Symbiotic relation with the sea-star, or just a passer-by I wonder??
Very nice series.

Blogie 10 years ago

Thanks, Palaimon! Currently I'm using a Nikon Coolpix P7000 in a Fantasea FP7000 housing. Sometimes I get to use an external strobe, a Sea&Sea YS01, which I borrow from a friend.

Palaimon 10 years ago

Amazing picture! Really nice colors.
What kind of equipment do you use?

Blogie 10 years ago

Thanks guys!

@argybee - Haha yeah! I've seen other critters that're friends with this type of starfish (chocolate chip sea star, I believe): frogfish, brittle stars, gobies, and more! :D

Mark Ridgway
Mark Ridgway 10 years ago


Maria dB
Maria dB 10 years ago

Great photos and beautiful octopus; also like starfish

Spotted by

Davao Del Norte, Philippines

Spotted on Jan 7, 2012
Submitted on Jan 10, 2012

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