Brochiraja microspinifera

LAST & McEACHRAN, 2006



Classification: Elasmobranchii Rajiformes Arhynchobatidae

Reference of the original description
LAST, P.R. & MCEACHRAN, J.D. (2006)
New softnose skate genus Brochiraja from New Zealand (Rajidae: Arhynchobatinae) with description of four new species. New Zealand Journal of Marine and Freshwater Research, 40 (1): 65–90

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Types
Brochiraja microspinifera
Holotype: NMNZ: P17714; Paratype: CSIRO: H 5960-01 (formerly NMNZ P.26227, 2 of 3); CSIRO: H 5960-02; NMNZ: P18054; NMNZ: P18102; NMNZ: P26227; NMNZ: P24750; NMNZ: P22094; NMNZ: P19685;


Description :


Citation: Brochiraja microspinifera LAST & McEACHRAN, 2006: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2018

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Short Description
A dwarf species with the following combination of characters: tail moderately elongate, 1.2-1.4 times disc length, 2.5-2.7 times ventral head length, 5.3-6.3 times snout length; orbit moderately large, 2.1-2.8 in preorbital snout length; tail base moderately broad, width at pelvic-fin insertions 2.1-3.1 times width at midlength; fine dermal dentic1es present over entire dorsal disc; rostral thorns reduced in adult, about equidistant from orbit and snout tip (snout length 1.8-2.1 times their distance from snout tip); mid-dorsal surface of tail naked apart from single row of moderately enlarged thorns extending anteriorly onto interpelvic space; dorsolateral surface of tail with numerous smaller thorns and large denticles; single preorbital thorn, postorbital thorn absent; ventral disc and tail naked; calcified rostral shaft short; alar thorns in small, well-defined patch; malar thorns absent; both surfaces of disc dark brown; with or without pale-edged pores on ventral surface; nuchal pore band indistinct; total pectoral radials 58-63; predorsal vertebrae 81-88; tooth rows in the upper jaw 33-37 (Ref. 58023).

Distribution
Southwest Pacific: New Zealand.

Size / Weight / Age
32.5 cm TL (male/unsexed; (Ref. 58023))

Habitat
bathydemersal; marine; depth range 600 - 1200 m (Ref. 58023)

Remarks
shark-references Species-ID=9499;