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

Pugettia producta (Randall, 1839)
Northern Kelp Crab
Family: Majidae

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

© Liz Watkinson  Email the photographer   (Photo ID #6708)

E-Fauna BC Static Map
Distribution of Pugettia producta in British Columbia
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Species Information

Carapace roughly quadrilateral, surface smooth with two large teeth on each lateral margin and with small preocular and post-ocular spines. Rostrum bifid with concave inner margins and hooked setae on dorsal surface of base and a few patches of small stubby setae. Hand smooth and palm slightly swollen; cutting teeth without any gape in female and immature male. In adult male, cheliped large and palm swollen with some gape between teeth. Walking legs subcylindrical, stout, and with strong curved claws with spines on ventral margins.

Size

Carapace: male 107 x 93 mm, female 92 x 78 mm.

Colour

Carapace and dorsal surface of chelipeds and walking legs mainly kelp brown. Ventrally, chelipeds with some dark red on merus and palm with fingers red and scarlet with yellowish teeth. Walking legs with some dark red and yellow ventrally; dactyls greenish-brown and light brown; claws dark brown. Abdomen, with patches of deep yellow and light brown on sternum and outer maxillipeds; epistome brown with teeth and ridges red, scarlet or yellow, varying amount of dark red ventrally. Young kelp crabs are brown without the bright colours of adults.

Habitat


Among seaweed, especially bull kelp (Nereocystis). Adults often on piles under wharves.

Distribution

Range

Prince of Wales Island (55°26’N, 133°18’W), Alaska, to Asuncion Point, Mexico; intertidal to 73 m.
Distribution In British Columbia

Common.

Comments


Carapace may be covered with barnacles in large specimens, but usually no organic matter is attached to hooked setae, in contrast to the camouflaging activities of P. gracilis and P. richii.

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
COSEWIC
UnlistedUnlistedUnlistedUnlisted
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: 2024-07-18 8:29:47 AM]
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