Bathyraja interrupta

(GILL & TOWNSEND, 1897)


Sandpaper skate
Classification: Elasmobranchii Rajiformes Arhynchobatidae

Reference of the original description
GILL, T. & TOWNSEND, C.H. (1897)
Diagnoses of new species of fishes found in Bering Sea. Proceedings of the Biological Society of Washington, 11: 231–234

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Raia interrupta, Raja interrupta, Rhinoraja interrupta

Types
Bathyraja interrupta
Syntype: USNM: 48760; USNM: 48761;


Description :


Citation: Bathyraja interrupta (GILL & TOWNSEND, 1897): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2018

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Bathyraja interrupta (GILL & TOWNSEND, 1897), © Alexei Orlov
Common names
eng Bering skate, eng Black skate, eng Sandpaper skate

Short Description
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).

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

Biology
Oviparous, paired eggs are laid. Embryos feed solely on yolk [733]. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother [17086]. Feeds on squids, fish eggs, detritus and benthic invertebrates [5868].

Size / Weight / Age
86.0 cm TL (male/unsexed; [17050])

Habitat
bathydemersal; marine; depth range 23 - 1500 m [20202]

Parasites (arranged by Jürgen Pollerspöck)
Cestoda