Gollum suluensis, Sulu Gollumshark

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Gollum suluensis Last & Gaudiano, 2011

Sulu Gollumshark
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Image of Gollum suluensis (Sulu Gollumshark)
Gollum suluensis
Female picture by Last, P.R./Gaudiano, J.P.

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) > Pseudotriakidae (False catsharks) 擬貓鮫科 (False catsharks)
Etymology: Gollum: Named for the antihero of Tolkien’s “Lord of the Rings” trilogy, to which G. attenuatus “bears some resemblance in form and habits”. (See ETYFish);  suluensis: -ensis, Latin suffix denoting place: Sulu Sea, Philippines, type locality. (See ETYFish).
More on authors: Last & Gaudiano.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 底中水層性.

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Known only from off Palawan Island (Philippines) in the western sector of the Sulu Sea basin; collected on the insular slope at about 730 m depth (Ref. 87759).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 58.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 87759)

簡短描述 型態特徵 | 形態測量圖

A small species of Gollum with the following combination of characters: body soft; head bell-shaped with a broadly parabolic snout; direct preorbital snout length 2.1–2.4 times eye length; preoral length 0.8–1.0 of mouth width, 1.3 times prenarial length; eye 1.4–1.5 times nostril length, more than 4.8 times spiracle length; head relatively broad, 12–14% TL; direct preorbital snout length 1.2–1.4 times interorbital space; head length 2.3–2.6 times mouth width, 8.0–9.0 times nostril width, 3.0–3.5 times preventral caudal-fin margin; length of pectoral-fin anterior margin 2.2–2.5 times its base; first dorsal-fin inner margin 0.5–0.6 of pectoral-fin base; second dorsal-fin base 10–12% TL; ventral head dusky, not strongly contrasted with dorsal surface along its lateral margin; posterior edges of dorsal fins not excessively concave; tips of dorsal fins dark; ventral margin of caudal fin dusky, not strongly contrasted with rest of fin; mouth dark; monospondylous centra 44–45, diplospondylous centra 107–109, total centra 151–154 (Ref. 87759).

生物學特性     字彙 (例如 epibenthic)


Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Last, P.R. and J.P. Gaudiano, 2011. Gollum suluensis sp. nov. (Carcharhiniformes: Pseudotriakidae), a new gollumshark from the southern Philippines. Zootaxa 3002:17-30. (Ref. 87759)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 22 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.8125   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00170 (0.00068 - 0.00426), b=3.21 (2.99 - 3.43), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.0   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).