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) >
Squatiniformes (Angel sharks) >
Squatinidae (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned) (See ETYFish); heteroptera: Name refers to the obvious difference in size, shape and area of the two dorsal fins.
Taxonomic Remarks
Synonym of Squatina dumeril according to (Weigmann, 2016, Ref. 106604).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の; 深さの範囲 ? - 164 m (Ref. 74686). Tropical
Western Atlantic: Gulf of Mexico.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 49.0 cm TL オス/雌雄の選別がない; (Ref. 74686)
簡単な記述
検索表 | 形態学 | 形態計測学
This species has no thorns nor enlarged denticles on the mean dorsal line. The dermal denticles has 4 keels extending posteriorly, its widest base, approximately twice its length. Dorsal fins are very different in size, shape and area, with their base about half their height. Nasal lobes are simple and similar in length; the first and last are spatula-like in shape; the central part irregularly quadrangular. its edge with several lobes. General body color is dark brown at the dorsal surface, ocelli absent, but with 2 distinct round black spots on the upper edge of the pectoral fins and with irregular, scattered whitish spots. Each side of jaws with 8 triangular, non-serrated, and straight teeth, the upper with 2 functional series, the lower with only one (Ref. 74686).
Body shape (shape guide): other.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Castro-Aguirre, J.L., H.S. Espinosa Pérez and L. Huidobro Campos, 2006. Dos nuevas especies del género Squatina (Chondrichthyes: Squatinidae) del Golfo de México. Rev. Biol. Trop. (Int. J. Trop. Biol.) [2006] 54 (3):1031-1040. (Ref. 74686)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00661 (0.00285 - 0.01530), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.8 ±0.5 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 (Preliminary low fecundity). |
漁業の脆弱性 (Ref. 59153) |
Low to moderate vulnerability (35 of 100). 🛈 |