Notoraja sereti

WHITE, LAST & MANA, 2017


Papuan Velvet Skate
Classification: Elasmobranchii Rajiformes Arhynchobatidae

Reference of the original description
WHITE, W.T. & LAST, P.R. & MANA, R.R. (2017)
A new species of velvet skate, Notoraja sereti n.sp. (Rajiformes: Arhynchobatidae) from Papua New Guinea. Zootaxa, 4244 (2): 219–230

Types
Notoraja sereti
Holotype: NTUM: 10067; Paratype: NTUM: 10042; NTUM: 10330;

Images of types

Description :


Citation: Notoraja sereti WHITE, LAST & MANA, 2017: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 09/2019

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Notoraja sereti WHITE, LAST & MANA, 2017 dorsal view, holotype (NTUM 10067, female 459 mm TL) immediately post-capture © WHITE, LAST & MANA, 2017
Common names
eng Papuan Velvet Skate

Short Description
Original Diagnosis of WHITE, LAST & MANA, 2017 [25171]: A medium-size species of Notoraja with the following combination of characters: disc wider than long, width 47.1–50.3% TL, length 42.0–43.6% TL; short head (dorsal head length 15.2–16.2% TL; ventral head length 21.6–22.9% TL); relatively short snout (preorbital length 10.1–11.1% TL; ventral snout length 11.2–12.1% TL); interspiracular distance 5.3–5.9 TL, internasal distance 6.2–6.8% TL, preorbital length 2.4–3.0 times orbit length and 2.9–3.6 times interorbital; two dorsal fins, interdorsal space 1.1–1.9% TL; tail width at pelvic-fin axil 0.9-1.6 times its height; single, small preorbital thorn; dorsal and most of ventral surface of disc entirely velvety, covered with fine denticles; median disc and pelvic fins naked in adolescent male; anterior pelvic-fin lobe naked in females (skin naked or with sparse denticles ventrally on mid belly, chin, nasal curtain, and around cloaca); tail long and slender, entirely velvety and without thorn-like denticles; lateral tail folds moderately well developed; nasal lobes expanded, width of nasal curtain 7.9–8.3% TL; anterior pelvic-fin lobe slightly shorter or similar length to posterior lobe; dorsal and ventral surfaces greyish brown to dark bluish grey; total pectoral-fin radials 58–60; monospondylous centra 23–25, total diplospondylous centra 103–106, total centra 126–131.

Distribution
Off Madang, Papua New Guinea (only types) [25171]

Size / Weight / Age
females (459 and 458 mm TL) and an adolescent male (363 mm TL) (only types9 [25171]

Habitat
bathydemersal; marine; depth range 800–980 m [25171]

Dentition
Tooth rows in upper jaw 43 (39–41); lower jaw 39 (37) [25171]

Remarks
shark-references Species-ID=14869;