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

Raja binoculata Girard, 1855
Big Skate
Family: Rajidae
Photo of species

© Neil McDaniel  Email the photographer   (Photo ID #15958)

Source: Distribution of Raja binoculata as compiled by Aquamaps
E-Fauna's interactive maps for fish are not yet available.

Species Information

Dorsal spines (total): 0; Anal spines: 0. Dorsal fins well back on tail, small; caudal and anal fins absent; pectorals broad, attached to snout and incorporated with body; pelvic fins large, moderately concave on free margins (Ref. 6885). Posterior sides of tail with a small fleshy keel on either side (Ref. 6885).

Source: FishBase. McEachran, J.D. and K.A Dunn. 1998 . (Ref. 27314)


Species Biology

Largest skate in North America (Ref. 2850). Feed on crustaceans and fishes (Ref. 6885). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 22.8-30.5 cm long and 11.0-19.4 cm wide (Ref. 41249, 41300, 41357). Environment: demersal; marine; depth range 3 - 800 m (Ref. 6793), usually 3 - 110 m (Ref. 2850). Climate: temperate; 61°N - 31°N, 165°W - 117°W

Source: FishBase. McEachran, J.D. and K.A Dunn. 1998 . (Ref. 27314)



North Pacific: Glubokaya Bay, Cape Navarin, and Stalemate Bank to Cedros Island, Baja California, Mexico.

Source: FishBase. McEachran, J.D. and K.A Dunn. 1998 . (Ref. 27314)

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
NativeSNRNo StatusNAR (Apr 2007)
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Additional Range and Status Information Links

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: 2023-02-02 9:01:33 AM]
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© E-Fauna BC 2021: An initiative of the Spatial Data Lab, Department of Geography, UBC