分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); mariposa: Name from a Spanish word meaning butterfly, referring to the large yellow patches on the pectoral fins that looks like the shape of butterfly wings.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 底中水層性; 深度上下限 90 - 448 m (Ref. 55500). 溫帶
Northeast Pacific: Aleutian Islands.
東北太平洋: 阿留申群島。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 76.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 55500)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is a medium-sized skate (maximum 76 cm TL) with a broad disc (width 60.9, 69.2% TL), long snout (12.0-14.3% TL), and moderately long tail (50.7-55.0% TL). It is distinguished by the following characters: claspers are slender, without pseudosiphon, projection extending distally well beyond dorsal lobe, dorsal terminal 1 and ventral terminal cartilages are reduced; teeth on upper jaw 21-31 rows; pectoral radials 76-80; pelvic fins I, 21-24; precaudal vertebrae 31-34, predorsal caudal vertebrae 65-72; dorsal surface of disc with uniformly dense covering of fine denticles, except near the margins; thorns absent from disc, tail thorns weak or obsolete; dorsal surface greenish brown with small dark brown or black blotches and irregular light brown to yellow blotches on disc and tail, large yellowish blotch present on posteromedial surface of each pectoral fin (Ref. 55500).
這種是具有一個寬的體盤 (寬度 60.9,69.2% TL) ，長的吻 (12.0-14.3% TL) 與中等長度的尾部 (50.7-55.0% TL) 的一個中等大小的魟魚 (最大的 76 公分TL) 。 它是藉著下列的特徵區別: 釦緊物是細長的,沒有 pseudosiphon,末梢部地延伸的突出越過背部的葉, 背部的終點 1 ，而且腹的末端軟骨組織被縮小的; 牙齒在上頜 21-31 列; 胸的動脈 76-80; 腹鰭 I, 21-24; 尾前椎 31-34, 前背的尾部脊椎骨 65-72; 背部表面體盤有細細齒的均勻密集覆蓋, 除了在邊緣的附近之外; 刺體盤，尾部刺沒有出現弱或退化的; 背面綠褐色的在體盤與尾部上有小的深褐色或者黑色的斑塊與不規則的淡褐色到黃色的斑塊, 大的淡黃色的斑塊位於每個胸鰭的 posteromedial 表面之上.(參考文獻 55500)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東北太平洋: 阿留申群島。
Stevenson, D.E., J.W. Orr, G.R. Hoff and J.D. McEachran, 2004. Bathyraja mariposa: a new species of skate (Rajidae: Arhynchobatinae) from the Aleutian Islands. Copeia 2004(2):305-314. (Ref. 55500)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 31 December 2014
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Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 4.5, mean 3.8 °C (based on 12 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00291 - 0.01038), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
