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).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 1700 - 2240 m (Ref. 75588).
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Western Indian Ocean.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 100.0 cm TL (female)
簡短描述
型態特徵 | 形態測量圖
This species is characterized by the following: moderately extended snout and mouth; wide interorbital space; broad space between the first gill slits; tail length shorter than body length; almost completely prickly upper but smooth lower surfaces, no thorns on disc, but only a median row of 19 thorns along tail to D1; nearly confluent dorsal fins without thorn between them; > 30 upper tooth rows; 40-44 trunk vertebrae; dorsal edge of scapulocoracoid strongly sloping to metacondyle; high number of postventral foramina, markedly short and broadly drop-shaped anterior cranial fontanelle (Ref. 75588).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Stehmann, M.F.W., 2005. Bathyraja tunae n. sp., a new deep-water skate from the western Indian Ocean (Chondrichthyes, Rajiformes, Rajidae). J. Ichthyol. 45(suppl.1):23-38. (Ref. 75588)
IUCN 瀕危狀態 (Ref. 130435)
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