分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) >
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.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の漂泳性; 深さの範囲 200 - ? m (Ref. 6871). Deep-water; 17°S - 26°S
Indo-West Pacific: patchy distribution, Austalia, Indonesia, the Philippines, Taiwan and Japan.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm ?, range 65 - ? cm
Max length : 48.0 cm WD オス/雌雄の選別がない; (Ref. 6871)
簡単な記述
検索表 | 形態学 | 形態計測学
脊つい: 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).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 商業
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00123 - 0.01230), b=3.09 (2.84 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.4 ±0.4 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
低い, 4.5年~14年の倍増期間の最小個体群 (Fec assumed to be <100). |
漁業の脆弱性 (Ref. 59153) |
High vulnerability (62 of 100). 🛈 |