分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Hemigaleidae (Weasel sharks)
Etymology: Hemigaleus: hemi-, from hemisys (Gr.), half, referring to similarity to and/or close affinity with Galeus (now in Pentanchidae). (See ETYFish); australiensis: -ensis, Latin suffix denoting place: referring to its occurrence off tropical Australia. (See ETYFish).
More on authors: White, Last & Compagno.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 12 - 170 m (Ref. 56150). 热带
Eastern Indian Ocean to Western Pacific: Australia and where records from Papua New Guinea need to be confirmed.
到西太平洋的东印度洋: 澳洲与在哪里来自巴布亚新几内亚需要的纪录被确认。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 62.5, range 60 - 65 cm
Max length : 110 cm TL 雄鱼/尚未辨别雌雄; (Ref. 56150)
简单描述
检索表 | 型态特徵 | 形态测量图
Diagnosis: Medium-sized shark with moderately long head; dorsal fins slightly raked back, moderately or not falcate, moderately low; height of first dorsal fin 2.6-3 in head length (HL); length of first dorsal fin 2.1-2.4 times its height; caudal-fin upper lobe moderately broad, not elongate; caudal-fin ventral lobe short, preventral margin 9.3-9.8% TL; pectoral fins broad, falcate, base length 2.1-2.4 in preventral caudal margin; claspers of adults moderately short, inner length 5.4-5.6% TL, 1.8-1.8 in pelvic midpoint to first dorsal-fin insertion; teeth in 28-30/46-52 rows; precaudal vertebral centra 65-70, total vertebral centra 112-121; second dorsal fin with a conspicuous dark tip; first dorsal fin with a pale posterior margin (Ref. 56150).
鉴别: 中等大小的鲨鱼有中等长度的头部; 背鳍些微地搜索了背面, 一般镰刀状的, 一般低; 第一背鳍的高度 2.6-3 分之一头长 (HL); 第一背鳍 2.1-2.4 的长度倍于它的高度; 尾鳍上叶一般宽, 不延长; 尾鳍腹面叶短, preventral 边缘 9.3-9.8% TL; 胸鳍宽的﹐镰刀状的, 在 preventral 尾部的边缘中的基底长度 2.1-2.4; 成鱼的扣紧物一般短又内部的长度 5.4-5.6% TL, 1.8-1.8 在腹鳍中点中对第一背鳍嵌入; 在 28-30/46-52 列中的齒; 尾前椎椎骨的中心 65-70,總計椎骨的中心 112-121; 第二背鰭鰭具有一個顯著的深色末端; 第一背鰭有一個灰白的後緣。 (參考文獻 56150)
描述: 兩者種在身體分節，顏色中不同, morphometrics: 藉由有一個總脊椎骨 137-164 的 Hemigaleus australiensis;(vs.112-121) 尾前椎 79-100;(vs.65-70) 在下頜 45-52 中的齒列的數字;(vs.37-43) 尖端深色的第二背鰭鰭;(vs. 尖端白色的) 大小成熟時雌性 60-65 公分TL(vs.74-80 公分TL) 與雄性 60 公分TL;(vs.>79 公分TL) 出生時大小 26-28 公分TL(vs.47-49 公分TL) 。 (參考文獻 56150)
A predominantly demersal species on continental and insular shelves from shallow, inshore bays down to 170 meters. Sexual maturity of males reached at about 60 cm TL; females between 60 - 65 cm TL; with young are born at about 30 cm TL (Ref. 56150).
在大陆棚与岛屿棚从浅水的上的一个主要底栖的种, 沿海地区海湾向下至 170 公尺。 雄性的性成熟于大约 60 公分TL 达到; 雌性在 60之间 - 65 公分TL; 与幼鱼于大约 30 公分TL 出生。 (参考文献 56150)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
到西太平洋的东印度洋: 澳洲与在哪里来自巴布亚新几内亚需要的纪录被确认。
White, W.T., P.R. Last and L.J.V. Compagno, 2005. Description of a new species of weasel shark, Hemigaleus australiensis (Carcharhiniformes: Hemigaleidae) from Australian waters. Zootaxa 1077:37-49. (Ref. 56150)
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Estimates based on models
Preferred temperature (Ref.
123201): 23.2 - 28.2, mean 26.9 °C (based on 385 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00147 - 0.00899), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.4 ±0.1 se; based on diet studies.
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).
