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

Bathyraja interrupta (Gill & Townsend, 1897)
Sandpaper Skate
Family: Rajidae
Photo of species

© Aaron Baldwin  Email the photographer   (Photo ID #13687)

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

Species Information

Dorsal spines (total): 0; Anal spines: 0. A single row of strong sharp spines along mid-dorsal line from a point about 1 interorbital space behind the orbits to the first dorsal fin; 1 or 2 large spines on shoulder girdle; in males, patches of large sharp spines near tips of pectoral fins and extending toward snout along margin of the fin (Ref. 6885). Caudal fin much reduced; pelvic fins large and deeply notched (Ref. 6885). All fins covered with scales (Ref. 6885). Adults slate black on back; juveniles a uniform grayed brown with small brown spots; white on ventral surface; white spot on either side of tail evident in small individuals (Ref. 6885).

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


Species Biology

Inhabit the outer continental shelf, on mud or sand bottoms (Ref. 27436). Frequently found buried in substrate (Ref. 27436). Feed on benthic invertebrates and fishes. 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 4.9-5.9 cm long and 4.0-5.0 cm wide (Ref. 41300). 6-9 eggs are produced annually (Ref. 41300). bathydemersal; marine; depth range 23 - 1500 m (Ref. 27436) . Deep water.

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



North Pacific: off Cape Navarin in the western Bering Sea and Agattu Island (Aleutian Islands) to Cortez Bank, southern California, USA.

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: 2024-07-15 7:56:09 AM]
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