Orbiraja jensenae

(LAST & LIM, 2010)


Sulu Sea skate
Classification: Elasmobranchii Rajiformes Rajidae

Reference of the original description
LAST, P.R. & LIM, A.P.K. (2010)
A new species of skate Okamejei jensenae sp. nov. (Rajoidei: Rajidae) from the seas off Borneo, with a redescription of the Kwangtung Skate, Dipturus kwangtungensis. CSIRO Marine and Atmospheric Research Paper, 32: 101–114

Image of the original description

Dorsal surface of <i>Okamejei jensenae</i> sp. nov., female holotype (PNM 15096, 488 mm TL): fresh. In: LAST, P.R. & LIM, A.P.K. (2010): A new species of skate <i>Okamejei jensenae</i> sp. nov. (Rajoidei: Rajidae) from the seas off Borneo, with a redescription of the Kwangtung Skate, <i>Dipturus kwangtungensis</i>. CSIRO Marine and Atmospheric Research Paper, 32: 101-114

Synonyms / new combinations and misspellings
Okamejei jensenae

Types
Orbiraja jensenae

Okamejei jensenae
Holotype: PNM: 15096 (old: SUML F 1135) ; Paratype: CSIRO: H 7111-01; IPPS: 2010-03; SUML: F 1136;

Images of types

Description :


Citation: Orbiraja jensenae (LAST & LIM, 2010): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2018

Please send your images of "Orbiraja jensenae" to info@shark-references.com

Dorsal surface/ventral surface of Okamejei jensenae sp. nov., female holotype (PNM 15096, 488 mm TL): preserved. In: LAST, P.R. & LIM, A.P.K. (2010): A new species of skate Okamejei jensenae sp. nov. (Rajoidei: Rajidae) from the seas off Borneo, with a redescription of the Kwangtung Skate, Dipturus kwangtungensis. CSIRO Marine and Atmospheric Research Paper, 32: 101-114
Short Description
Original diagnosis of LAST, WEIGMANN & DUMALE, 2016 [24615]: A small to medium-sized rostrorajin skate (to about 53 cm TL) with the following combination of characters: disc with narrowly to broadly rounded apices, width 59–71% TL, 1.1–1.2 times its length; snout angle 88–98°; tail relatively short in females (length 0.8–0.9 in distance from snout tip to rear of cloaca), longer in adult male (length 1.1 times distance from snout tip to rear of cloaca); tail width 1.5–1.8 times height at its midlength, 1.4–1.7 times at first dorsal-fin origin; pre-upper jaw length 17–18% TL, 2.0–2.2 times internasal width; ventral head length 29–32% TL; snout length 3.3–3.4 times interorbital width; orbit diameter 67–85% interorbital width; first dorsal-fin height 2.0–2.7 in its base length; long procaudal length, distance from first dorsal-fin origin to tail tip 3.1–4.0 times first dorsal-fin base length, 3.2–6.3 times caudal-fin length; pelvic fins of medium size, length of posterior lobe 16–18% TL, length of anterior lobe 71–83% of posterior lobe; adult male lacking malar thorn patches; alar thorn patches small, broadly oval; adult clasper with greatly extended components spike and sentinel; accessory terminal 2 cartilage with strongly articulated medial distal extension, partly overlaying axial cartilage on median margin; anterior margins of both surfaces of disc of females with narrow denticle bands; single median series of thorns extending along entire midline of disc; tail thorns well developed, numerous, in 3 closely spaced median rows and irregular lateral row on each side (absent from dorsolateral region of tail); thorns in central median row fewer and smaller than in rows adjacent; total pectoral radials 80–82; trunk centra 26–31; predorsal centra 79–85; total centra 133–138; tooth rows in upper jaw 61–76; brownish and white spotted, with large dark pectoral spots bordered with smaller white spots when fresh; rostral cartilage demarcated from rest of snout; ventral surface whitish with outer margins of pectoral fins yellowish; ventral sensory pores minute, indistinct, not black-edged or surrounded by greyish blotches; dorsal fins dark anteriorly, paler posteriorly; caudal fin pale or brownish.

Distribution
Western Pacific: Philippines [9065]

Biology
Tropical [9065]

Size / Weight / Age
Max length : 53.3 cm TL male/unsexed; [9065]

Habitat
Benthopelagic; marine; depth range 110 - 118 m [9065]