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Bristly crab

Telmessus cheiragonus


Aka the Hairy helmet crab. The Bristly crab is covered in setae, the bristly like projections. In some of the pictures it is using its pincers to tear off algea, which it eats. Carapace was about 8 cm.


Spotted in a tide pool at low tide.


Eats a variety of food, such as eelgrass, eelgrass detritus, snails, algae, worms, and bivalves. Predators include sea otters and fur seals, the rosylip sculpin (Aschelichthys rhodorus), and gulls.

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Congratulations on 2000 spottings.

SukanyaDatta a year ago

Wow missed this one.2000th. the spottings.

Brian38 a year ago

Thanks everyone for your kind words! The journey here on PN has been incredible for me. So much learning! So much discovering! So much fun!

Congrats Brian on the 2000 one and thanks for sharing your awesome spotting page,great work :-)

DanielePralong a year ago

Congratulations on the milestone Brian!

Zlatan Celebic
Zlatan Celebic a year ago

Great spotting Brian; definitely a grumpy look of someone who is still trying ton find his/her coffee...
and congrats on the milestone!

Neil Ross
Neil Ross a year ago

A big congrats on your 2000th spotting, Brian. What an awesome milestone, and a fitting spotting. I like this crab, and I think we both share that early morning pre-coffee look :)

Spotted by

Washington, USA

Spotted on May 18, 2019
Submitted on May 24, 2019

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