分類 / 名稱
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) >
Pentanchidae (Deepwater catsharks)
Etymology: Holohalaelurus: holos (Gr.), whole or entire, i.e., being a form of Halaeurus without any labial folds or grooves in the mouth (See ETYFish); punctatus: Latin for spotted, referring to dense covering of small brown spots on dorsal surface (See ETYFish).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海底的; 深度上下限 220 - 440 m (Ref. 5510). 深水域; 4°S - 37°S
Western Indian Ocean: endemic to the subtropical and tropical waters of southwestern Indian Ocean, southern Mozambique, off Natal, South Africa and off Madagascar (Ref. 75585).
Status of threat: a common catch in bottom trawls in Natal and southern Mozambique, yet, despite recent biodiversity trawl surveys in that region, not a single specimen has been collected from this area since 1972. ORI data sheets confirm that specimens collected between 1964 and 1972 were apparently abundant, particularly off Mozambique in May 1969, and off Durban in June 1971. The only specimens of this species that have been collected since this date have been those from Madagascar in the late 1980’s and early 1990’s (Ref. 75585).
西印度洋: 莫三比克南部與納塔爾外海，南非。 此魚種或相關魚種發現外海的馬達加斯加，肯亞與坦尚尼亞。 (參考文獻 5578)
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 31.2, range 30 - 32.6 cm
Max length : 35.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5510); 26.0 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 臀棘: 0. A broad-headed, dwarf catshark with small dark brown spots closely set on a yellow-brown or orange-brown background; small black pores on underside of head and body; no labial furrows (Ref. 5578).
Body shape (shape guide): elongated.
一個寬頭又矮小的貓鯊有小的深褐色的斑點在黃褐色或橘褐色背景上緊密地在一起; 在頭部與身體的下面上的小的黑色孔; 沒有唇溝.(參考文獻 5578)
Found on the uppermost continental slopes (Ref. 244). Feeds on small fishes, crustaceans, and cephalopods (Ref. 5213). The adult males are larger than females, a characteristic unusual among sharks (Ref. 244). Manifests partial sexual segregation. Oviparous (Ref. 50449).
棲息於最上面的大陸斜坡了。 (參考文獻 244) 吃小魚，甲殼動物與頭足類動物。 (參考文獻 5213) 成魚雄性是大於雌性, 一個特殊的罕見在鯊魚之中.(參考文獻 244) 顯示部分的性別異形性。 卵生的.(參考文獻 50449)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, with one egg-case laid per oviduct at a time. Embryos feed solely on yolk (Ref. 50449). Partial sexual segregation is manifested by greater number of males than females off Natal but not off southern Mozambique.西印度洋: 莫三比克南部與納塔爾外海，南非。 此魚種或相關魚種發現外海的馬達加斯加，肯亞與坦尚尼亞。 (參考文獻 5578)
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
瀕危 (EN) (A2d); Date assessed: 01 August 2019
人類使用
漁業: 沒有興趣
工具
特別的報告
下載 XML
網路資源
基於模型的估計
首選溫度 (參考文獻
123201): 13.1 - 15.8, mean 15.3 °C (based on 13 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00172 - 0.00698), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 4.2 ±0.61 se; based on food items.
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (25 of 100).
🛈
