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) >
Heterodontiformes (Bullhead and horn sharks)
虎鯊目 (Bullhead and horn sharks) >
Heterodontidae (Bullhead, horn, or Port Jackson sharks)
異齒鮫科 (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: heteros (Gr.), different; odontos (Gr.), tooth, referring to pointy teeth (for clutching prey) at front of jaws, different than rounded molar-like teeth (for grinding hard-shelled invertebrates) at the back (See ETYFish); omanensis: -ensis, Latin suffix denoting place: Gulf of Masira, Central Oman, Arabian Sea, type locality (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 72 - 80 m (Ref. 106604). 熱帶
Western Indian Ocean: Central Oman.
西印度洋: 中央的阿曼。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 56.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 54826); 61.0 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 98. Diagnosis: Four dark saddles, more or less equally distributed along the head and body. Relatively small, dark pigmented dorsal fins, each with a white distal streak. Large pectoral fins. Unique egg case, with 2 long tendrils extending from its base and flanges with 2 turns. This species differs from H. japonicus in having 4 dark saddles (vs. 11-14); a smaller first-dorsal fin (9.3-10.9% TL vs. 11-21% TL); an egg case of 2 turns (vs. 3), bearing extremely long tendrils (vs. short) (Ref. 54826).
鑑別: 四個深色的鞍狀斑, 約略同樣地分佈沿著頭部與身體。 相當小又深色的背鰭, 每個具有一個白色的末梢部的條紋。 大的胸鰭。 獨特的卵莢, 有兩個從它的基底延伸的長的捲鬚，而且邊緣有兩個旋轉。 這種有別於 H. japonicus 有 4個深色的鞍狀斑;(vs.11-14) 一個較小的第一背鰭 (9.3-10.9% TL 和 11-21% TL 比較); 2 的卵莢旋轉 (vs.3), 生長著非常長的捲鬚 (vs. 短).(參考文獻 54826)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西印度洋: 中央的阿曼。
Baldwin, Z.H., 2005. A new species of bullhead shark, genus Heterodontus (Heterodontiformes: Heterodontidae), from Oman. Copeia 2005(2):262-264. (Ref. 54826)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00165 - 0.00876), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
