Bathyraja matsubarai

(ISHIYAMA, 1952)


Dusky-purple skate
Classification: Elasmobranchii Rajiformes Arhynchobatidae

Reference of the original description
ISHIYAMA, R. (1952)
Studies on the rays and skates belonging to the family Rajidae, found in Japan and adjacent regions. 4. A revision of three genera of Japanese rajids with descriptions of one new genus and four new species mostly occured in northern Japan. Journal of the Shimonoseki College of Fisheries, 2 (2): 1–34, Pls. 1–4.

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Synonyms / new combinations and misspellings
Bathyraja caeluronigricans, Bathyraja caerulonigricans, Breviraja matsubarai, Breviraja (Bathyraja) matsubarai

Types
Bathyraja matsubarai
Holotype: FAKU: 49458 (R. Ishiyama no. 16701) ; Paratype: CAS: 23115 (R. Ishiyama no. 16699); CAS: 23114 (R. Ishiyama no. 16698); Reizo Ishiyama Coll.: uncat.;
Bathyraja caeluronigricans
Holotype: MTUF: 21803; Paratype: MTUF: 21816; MTUF: 21814; MTUF: 21813; MTUF: 21811; MTUF: 21812; MTUF: 21810; MTUF: 21808; MTUF: 21809; MTUF: 21807; MTUF: 21805; MTUF: 21804; MTUF: 21815; MTUF: 21806;


Description :


Citation: Bathyraja matsubarai (ISHIYAMA, 1952): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2018

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Common names
eng Dusky-purple skate

Short Description
Differs from its congeners in having a dark purplish brown color at both sides of the body; eyeball as long as the spiracle; interorbital space smooth; clasper with deep cleft (Ref. 75535).

Distribution
Northwest Pacific: off northern Japan (Ref. 559) and Sea of Okhotsk (Ref. 41724).

Human uses
fisheries:

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]. Eggs have horn-like projections on the shell [17086]. Feeds on fish, cephalopods, benthic invertebrates, zooplankton and detritus [5868].

Size / Weight / Age
126 cm TL (male/unsexed; (Ref. 56527)); max. published weight: 10.6 kg (Ref. 56527)

Habitat
bathydemersal; marine; depth range 120 - 2000 m (Ref. 50550)