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Giant Pacific Chiton

Cryptochiton stelleri


Gumboot Chitons eat algae, moving along rocks. They also eat sea lettuce and giant kelp. They can live up to forty years. It seems they have no predators to worry about. They are edible but apparently so unpalatable that one would have to be starving to eat it. "Rubbery" is how they are described.


Pacific Ocean.

No species ID suggestions


Hema a year ago

They live upto 40 yrs Neil.No predators and bad tasting!

Neil Ross
Neil Ross 2 years ago

Wow. Now that is amazing. I had no idea they lived so long.

Hema 2 years ago

I mean "Upside down"Maybe it is feeding on the kelp in that position.

Hema 2 years ago

Thanks Albert it was Identified as Cryptochiton stelleri. An upside version of gumboot chiton.

Hema 2 years ago

Thank you so much Albert. i will post it there!

AlbertKang 2 years ago

Hi Hema, unfortunately, I am not familiar with this one, especially it is not from Asia.

If you like, you can post the pic to ID Please (Marine Creature Identification) as there are many marine biologists there and some who specializes in Gastropods/Nudibranchs/Slugs. The link to the FB Group is :

Hema 2 years ago

Tridacna gigas?

California, USA

Lat: 39.23, Long: -120.59

Spotted on May 1, 2016
Submitted on May 1, 2016

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