इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).
Eponymy: Dr ‘Thomas’ Nelson Annandale (1876–1924) was a zoologist (primarily entomologist and herpetologist) and anthropologist who became Superintendent of the Indian Museum, Calcutta which still houses his insect and spider collection. [...] (Ref. 128868), visit book page.
More on author: Norman.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री; खारा ड़िमरसल; ऐम्फिढरोमस (Ref. 51243); गहराई सीमा 40 - 90 m (Ref. 114953). Tropical; 26°N - 5°N, 56°E - 99°E (Ref. 114953)
Indian Ocean: Oman to the Andaman Sea, off Myanmar.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 89.0 cm TL पुल्लिंग / अलिंग; (Ref. 121648); 65.0 cm TL (female); अधिकतम प्रकाशित वज़न: 2.4 kg (Ref. 121648); अधिकतम प्रकाशित वज़न: 2.4 kg
Primarily benthic (Ref. 114953). Occurs mainly in the marine environment, but also enters the lower reaches of rivers. Ovoviviparous (Ref. 50449). Males mature by 68 cm TL; born at ca. 20 cm TL. Females produces litters up to 6 pups (Ref. 114953). Minimum depth range from Ref. 121775.
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Last, P.R., B. Séret and G.J.P. Naylor, 2019. Description of Rhinobatos ranongensis sp. nov.(Rhinopristiformes: Rhinobatidae) from the Andaman Sea and Bay of Bengal with a review of its northern Indian Ocean congeners. Zootaxa 4576(2):257-287. (Ref. 123963)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00174 (0.00117 - 0.00258), b=3.10 (2.98 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
ट्रॉफिक स्तर (संदर्भ 69278) |
3.7 ±0.4 se; based on size and trophs of closest relatives |
लौटाव (संदर्भ 120179) |
निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec assumed to be <100). |
मछली पकड़ने की भेद्यता (Ref. 59153) |
Moderate vulnerability (42 of 100). 🛈 |