Rhinobatos manai

White, Last & Naylor, 2016

Papuan Guitarfish
Classification: Elasmobranchii Rhinopristiformes Rhinobatidae

Reference of the original description
White, W.T. & Last, P.R. & Naylor, G.J.P. (2016)
Rhinobatos manai sp. nov., a new species of guitarfish (Rhinopristiformes: Rhinobatidae) from New Ireland, Papua New Guinea. Zootaxa, 4175(6), 588–600

Rhinobatos manai
Holotype: NTUM: 11500;

Images of types

Description :

Citation: Rhinobatos manai White, Last & Naylor, 2016: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 05/2024

Please send your images of "Rhinobatos manai" to info@shark-references.com

Rhinobatos manai White, Last & Naylor, 2016, adult male holotype, 731 mm TL (NTUM 11500) © Dr. Will White, Australian National Fish Collection, National Research Collections Australia, CSIRO
Common names
eng Papuan Guitarfish

Short Description
Original diagnosis after WHITE, LAST & NAYLOR, 2016 [24557]: A Rhinobatos distinguished by the following combination of characters: disc wedge-shaped, its dorsal surface covered in minute dermal denticles but without thorns; snout long, snout length 3.6 times interspiracular distance; orbit moderately large, diameter 1.7 times spiracle length; nostrils oblique, length 1.6 times internarial distance; anterior nasal flaps inserted into internarial space well away from nostril margin; posterior nasal flaps broad; ridges of rostral cartilage well-separated dorsally and almost parallel; prebranchial sensory-pore patch narrow, extending to first gill slit; distance between first gill slits 1.5 times distance between fifth gill slits; distance between fifth gill slits 3.4 times in ventral head length; postscapular sensory canal long, not grooved, extending more than three-quarters distance to pectoral-fin insertions; dorsal fins moderately tall; pelvic-fin inner margin shorter than its base; interdorsal distance more than 3.1 times first dorsal-fin base; outer spiracular fold distinctly larger than inner fold; dorsal margin of caudal fin ~2 times preventral margin; 171 post-synarcual (free) vertebral centra; 188 total vertebral centra; 52 nasal lamellae; and dorsal disc brownish, covered with well-defined rusty brown spots and blotches and poorly defined white spots with greyish edges.

of Kavieng, New Ireland, in the Bismarck Archipelago of Papua New Guinea (only holotype) [24557]

Size / Weight / Age
Only known from the holotype, a 731 mm TL adult male [24557]

marine: depth range 191–290 m [24557]

Teeth small, blunt, crowns rhomboidal; teeth quincuncial, ~92 rows in upper jaw and ~86 rows in lower jaw; upper and lower jaw teeth similar in shape and size. [24557]

shark-references Species-ID=14709;