Brochiraja microspinifera
Last & Mceachran, 2006
Classification: Elasmobranchii Rajiformes Arhynchobatidae
Reference of the original description
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
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
Image of the original description
Image in copyright.
Image in copyright.
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;
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 11/2024
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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).
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.
Southwest Pacific: New Zealand.
Remarks
shark-references Species-ID=9499;
shark-references Species-ID=9499;