ইলাসমোব্রাঙ্কি (হাঙ্গর এবং রে) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); manai: Named for Dr. Ralph Mana of the University of Papua New Guinea..
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক; গভীরতার পরিসীমা 191 - 290 m (Ref. 117108). Tropical
Southwest Pacific: Papua New Guinea.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 73.1 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 117108)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
This species is distinguished by the following set of characters: a wedge-shaped disc, with its
dorsal surface covered in minute dermal denticles but without thorns; long snout, its length 3.6 times interspiracular distance; moderately large orbit, its diameter 1.7 times spiracle length; oblique nostrils, its length 1.6 times internarial distance; the anterior nasal flaps are inserted into internarial space well away from nostril margin; posterior nasal flaps are broad; ridges of rostral cartilage well-separated dorsally and almost parallel; narrow prebranchial sensory-pore patch, extending to first gill slit; distance between first gill slits is 1.5 times distance between fifth gill slits; distance between fifth gill slits is 3.4 times in ventral head length; long postscapular sensory canal, not grooved and extending more than three-quarters distance to pectoral-fin insertions; moderately tall dorsal fins; pelvic fin's inner margin is shorter than its base; interdorsal distance is more than 3.1 times first dorsal-fin base; outer spiracular fold is distinctly larger than the inner fold; dorsal margin of caudal fin ca. 2 times preventral margin; post-synarcual (free) vertebral centra 171; total vertebral centra 180; nasal lamellae 52; dorsal disc is brownish and covered with well defined rusty brown spots and blotches and poorly defined white spots with greyish edges (Ref. 117108).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
White, W.T., P.R. Last and G.J.P. Naylor, 2016. Rhinobatos manai sp. nov., a new species of guitarfish (Rhinopristiformes: Rhinobatidae) from New Ireland, Papua New Guinea. Zootaxa 4175(6):588-600. (Ref. 117108)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.7 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).
