E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Chionoecetes angulatus Rathbun, 1925
Angled Tanner Crab
Family: Majidae

Species account author: Josephine Hart.
Extracted from Crabs and their relatives of British Columbia.
Photo of species

© Aaron Baldwin  Email the photographer   (Photo ID #43626)

E-Fauna BC Static Map
Distribution of Chionoecetes angulatus in British Columbia
Details about map content are available here.

Species Information

Carapace slightly wider than long, surface finely pubescent with numerous spines and granules; lateral margins armed with large spines and posterior with granules. There are two rows of spines on each branchial area which meet to form a V at an angle of about 45°; the junction is marked with a stout spine on the lateral margin. Branchial area dilated but interbranchial space little depressed. Walking legs compressed with rows of sharp spines; meri slightly dilated proximally.


Carapace: male 135 x 152 mm.


Adults scarlet; juveniles white.


Deep water, soft bottom, mud, sand or ooze.



Sea of Okhotsk and Bering Sea to Oregon, (43°01’N); from 90 to 2974 m.
Distribution In British Columbia

West of continental shelf from 1069 to 2430 m.


Easily confused with C. tanneri but usually caught in deeper water.

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-06-12 8:20:18 AM]
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© E-Fauna BC 2021: An initiative of the Spatial Data Lab, Department of Geography, UBC