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) >
Rajiformes (Skates and rays) >
Gurgesiellidae (Pygmy skates)
Etymology: Cruriraja: Latin, crur, cruris = pertaining to a leg + Latin, raja = a ray (Raja sp) (Ref. 45335).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 深海魚; 深さの範囲 ? - 859 m (Ref. 5578). Deep-water; 28°S - 32°S
Southeast Atlantic: off Port Nolloth, South Africa.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 23.0 cm TL オス/雌雄の選別がない; (Ref. 2708); 31.0 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
A legskate with a pointed thornless snout and with large whitish thorns on shoulders, around the eyes, and in a single row from the nape to the 1st dorsal fin (Ref. 5578). Legskates have pelvic fins separated into a mobile leg-like front lobe, and a rear lobe that may be fused to the tail base (Ref. 5578). Uniformly reddish-brown above, lighter below (Ref. 5578).
Body shape (shape guide): other.
A rare species known only from 2 specimens both of which are missing (Ref. 2708). Oviparous (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
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
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: 興味がない
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): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00227 - 0.01925), b=2.95 (2.71 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.7 ±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 (Fec assumed to be <100).
漁業の脆弱性 (Ref.
59153): Low vulnerability (21 of 100).
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