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) >
Carcharhiniformes (Ground sharks)
真鯊目 (Ground sharks) >
Triakidae (Houndsharks)
平滑鮫 (Houndsharks) > Galeorhininae
Etymology: Iago: Name of villain in Shakespeare’s Othello, because members of this genus have been a “troublemaker for systematists and hence a kind of villain”. (See ETYFish); garricki: Patronym not identified but clearly in honor of J.A.F. (Jack) Garrick (1928-2018), New Zealand shark taxonomist and biologist. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 250 - 475 m (Ref. 6871). 深水域; 9°S - 26°S
Indo-Pacific: from the South China Sea (off Dongsha Atolll) to nw and ne Australia, including Indonesia, the Philippines, Papua New Guinea and Vanuatu.
中西太平洋: 澳洲 (包括西澳大利亞, 參考文獻 6871) ，萬那度與菲律賓, (參考文獻 47737)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 45 - ? cm
Max length : 75.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244)
背棘 (總數): 0; 背的軟條 (總數): 0; 臀棘 0; 臀鰭軟條: 0. This species is distinguished by the following characters: snout long and narrow; preoral length 35.1% (34.9-38.7%) head length; eye large, its length 18.5% (17.0-24.1%) HL; gill slit rather short, first gill slit height 47.8% (31.4-51.6%) eye length; anterolateral teeth straight to slightly oblique, blade-like, with 1-3 broad, smooth distal cusplets; first dorsal-fin origin does not reach to the vertical line through the pectoral-fin base; caudal-fin ventral lobe is moderately developed in adults. Colouration: body generally grey, with faint dark edges on dorsal-fin apexes, more prominent in juveniles (Ref. 127459).
A little-known tropical shark found on the uppermost insular slopes (Ref. 13563) at depths of 250-475 m (Ref.58048). Stomach contents of a specimen included small Macrouridae (Hymenocephalus sp., Nezumia sp., Ventrifossa spp.), crustaceans (Penaeoidea, Munidae) (Ref. 127459) and cephalopods (Ref. 244). Viviparous, placental (Ref. 50449). Caught irregularly by the small-scale demersal longline fisheries operating in deepwater. Utilized for its meat and fins, but of limited value due to its small size (Ref.58048).
所知極少的熱帶鯊魚發現於最上面的島斜坡了。 (參考文獻 13563) 吃頭足類動物。 (參考文獻 244) 胎生的, 胎盤的.(參考文獻 50449)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Viviparous, placental (Ref. 50449). With 4 or 5 young per litter (Ref. 244). Size at birth near 23 cm (full-term fetuses) (Ref. 244). Distinct pairing with embrace (Ref. 205).中西太平洋: 澳洲 (包括西澳大利亞, 參考文獻 6871) ，萬那度與菲律賓, (參考文獻 47737)
Ng, S.-L., H.-C. Ho, K.-M. Liu and S.-J. Joung, 2022. Redescription of the longnose houndshark Iago garricki (Carcharhiniformes: Triakidae), based on specimens recently collected from the South China Sea. Zootaxa 5189(1):67-77. (Ref. 127459)
人類使用
漁業: 低經濟
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Estimates based on models
Preferred temperature (Ref.
123201): 11 - 17.2, mean 12.4 °C (based on 26 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00183 - 0.00992), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.37 se; based on food items.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=4).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
