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Myliobatiformes (Stingrays) >
Myliobatidae (Eagle and manta rays)
Etymology: Myliobatis: Greek, mylo = mill + Greek, + Greek, batis,-idos = a ray (Raja sp.) (Ref. 45335).
Eponymy: Dr Ronald Hamlyn-Harris (1874–1953) was an English-born entomologist. [...] (Ref. 128868), visit book page.
More on author: Ogilby.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
بحري قاعية التغذية و المعيشة; نطاق العمق 200 - ? m (Ref. 6871). Deep-water; 17°S - 26°S
Indo-West Pacific: patchy distribution, Austalia, Indonesia, the Philippines, Taiwan and Japan.
الطول عند النضج الأول / الحجم / وزن / العمر
النضج: Lm ?, range 65 - ? cm
Max length : 48.0 cm WD ذكر/ مختلط الجنس; (Ref. 6871)
فقرات: 114 - 119. This medium-sized Myliobatis species (attaining at least 114.2 cm DW) is distinguished by the following set of characters: dorsal surface uniformly purplish brown to greenish brown, without dark spots or blotches; tail with a distinct, low ventral skin fold; stinging spine(s) are relatively long (longest spine 13.1-15.9% DW); adult males with interorbital space moderately concave; anterior margins of pectoral fin is straight to slightly convex; cranial fontanelle (visible in dorsal view without dissection) is relatively wide with slightly convex lateral margins; claspers of adult males 5.5-5.7% DW; predorsal length 63.6-68.6% DW; each jaw with 7 rows of teeth, with a broad median row flanked by three smaller rows on each side; pectoral-fin radials 85-92 (excluding rostral propterygial radials anterior of eyes); total vertebral centra (including synarcual) 114-119; males mature at about 65.0 cm DW (Ref. 132213).
Cross section: flattened.
Common inshore and offshore, demersal in intertidal habitats to depths of at least 220 m (Ref. 58048); also in coral reefs (Ref. 58534). Diet unknown, but presumably consists primarily of bivalves and other bottom-dwelling invertebrates. Caught occasionally by inshore, demersal longline fisheries. Utilized for its meat and cartilage (Ref. 58048). Ovoviviparous (Ref. 50449).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
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).
White, W.T., J. Kawauchi, S. Corrigan, E. Rochel and G.J.P. Naylor, 2015. Redescription of the eagle rays Myliobatis hamlyni Ogilby, 1911 and M. tobijei Bleeker, 1854 (Myliobatiformes: Myliobatidae) from the east Indo-West Pacific. Zootaxa 3948(3):521-548. (Ref. 132213)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
استخدامات بشرية
مصائد: تجاري
أدوات
تقارير خاصة
تنزيل XML
مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00124 - 0.01219), b=3.08 (2.83 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
المرونه (مرجع
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec assumed to be <100).
ضعف الصيد (Ref.
59153): Very high vulnerability (83 of 100).
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