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) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Scymnodalatias: scymno-, referring to previous placement in Scymnodon; dalatias, referring to lack of dorsal spines like most sharks in the family Dalatiidae (sometimes included within Somniosidae). (See ETYFish); albicauda: albus (L.), white; cauda (L.), tail, referring to white markings on caudal fin. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 海洋洄游的 (Ref. 51243); 深度上下限 150 - 510 m (Ref. 6871). ; 42°S - 50°S
Eastern Indian Ocean: southern Australia. Southwest Pacific: New Zealand.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 111 cm TL 雄魚/尚未辨別雌雄; (Ref. 26346)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0. Grey and white, mottled with large brown or black spots; tail mostly white with black tips (Ref. 26346). Dorsal fins small, pectoral fins angular, and an asymmetric caudal fin with a dark-tipped upper lobe (Ref. 6871).
Oceanic (Ref. 6871). A rare species known only from a few specimens taken by tuna longliners and trawlers (Ref. 6871). Ovoviviparous (Ref. 205), with at least 59 young in a litter (Ref. 26346).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Probably ovoviviparous (Ref. 6871), with at least 59 young (Ref. 26346). Distinct pairing with embrace (Ref. 205).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
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Estimates based on models
Preferred temperature (Ref.
123201): 7.2 - 11.8, mean 9.2 °C (based on 20 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00168 - 0.00901), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.1 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec=59).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).
