Rhynchobatus palpebratus

COMPAGNO & LAST, 2008


Eyebrow wedgefish
Classification: Elasmobranchii Rhinopristiformes Rhinidae

Reference of the original description
COMPAGNO, L.J.V. & LAST, P.R. (2008)
A new species of wedgefish, Rhynchobatus palpebratus sp. nov. (Rhynchobatoidei: Rhynchobatidae), from the Indo-West Pacific. CSIRO Marine and Atmospheric Research Paper, 22: 227–240

Image of the original description

Rhynchobatus palpebratus sp. nov.: dorsal view of female paratype (CSIRO CA 2373, 455 mm TL, preserved). In: COMPAGNO, L.J.V. & LAST, P.R. (2008): A new species of wedgefish, Rhynchobatus palpebratus sp. nov. (Rhynchobatoidei: Rhynchobatidae), from the Indo-West Pacific. CSIRO Marine and Atmospheric Research Paper, 22: 227-240

Types
Rhynchobatus palpebratus
Holotype: CSIRO: H 3384-01; Paratype: CSIRO: H 4927-01; CSIRO: H 3340-01; CSIRO: C 2291; CSIRO: H 3322-01; CSIRO: H 2376-08; CSIRO: CA 2373;


Description :


Citation: Rhynchobatus palpebratus COMPAGNO & LAST, 2008: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 09/2020

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Rhynchobatus palpebratus sp. nov.: dorsal view (fresh), lateral view (preserved), ventral view (preserved) of adult male holotype (CSIRO H 3384–01, 1025 mm TL); In: COMPAGNO, L.J.V. & LAST, P.R. (2008): A new species of wedgefish, Rhynchobatus palpebratus sp. nov. (Rhynchobatoidei: Rhynchobatidae), from the Indo-West Pacific. CSIRO Marine and Atmospheric Research Paper, 22: 227-240
Common names
eng Eyebrow wedgefish

Short Description
Original diagnosis after COMPAGNO & LAST, 2008 [3347]: A Rhynchobatus with a long and narrowly pointed snout, not bottle-shaped or broadly wedge-shaped; preoral snout 17–22% of total length. Eyes small, lengths 3.7–4.0 in preorbital snout; interorbital space 2.6–2.8 in preorbital snout. Mouth hardly bowed, with a strong indentation on upper jaw near symphysis and strong protuberance on lower jaw. no spines on dorsal snout. Supraorbital spines very small, spines in mid-dorsal row similarly small; single weak row of small scapular spines on each side. Enlarged dorsal spines light-coloured. Origin of first dorsal fin over origin of pelvic fin; predorsal length 43–48% of total length. Colour pattern yellowish grey with white spots on pectoral disc and tail; pectoral disc with a prominent white anterior margin; black eye-brow like markings on orbital membrane; large, sharp-edged, black ocelli on pectoral-fin bases and sometimes behind spiracles. Propterygial radials 3–7 + 20–23 = 25–29, mesopterygial radials 3–5 + 5–7 = 9–12, metapterygial radials 24–28, total radials 62–65. Vertebrae: 12–14 synarcual centra, 25–35 monospondylous precaudal centra, 61–72 diplospondylous precaudal vertebrae, 35–44 caudal centra, 130–139 free centra, 144–152 total centra.

Distribution
Indo-West Pacific: Andaman Sea (Thailand) and Arafura Sea (NT, Australia). [3347] Source: www.gbif.org

Size / Weight / Age
103 cm TL (male/unsexed; [3347])

Habitat
demersal; marine; depth range 5 - 61 m [3347]

Dentition
Tooth rows in upper jaw about 52 [3347]

Remarks
shark-references Species-ID=6167;

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
  • Prochristianella clarkeae BEVERIDGE, 1990 [17404]