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) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) (See ETYFish); nakayai: In honor of ichthyologist Kazuhiro Nakaya (b. 1945), Hokkaido University (Japan), who has dedicated his research on Apristurus, describing eight new species and revising the genus in 2009 (See ETYFish).
Eponymy: Dr Kazuhiro Nakaya (d: 1945) is a Japanese ichthyologist and marine scientist who specialises in the taxonomy and evolution of sharks and rays, and also the fish of Lake Tanganyika. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 深度上下限 953 - 1022 m (Ref. 93246). ; 21°S - 22°S, 157°E - 158°E (Ref. 93246)
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Pacific Ocean: New Caledonia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 67.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 93246)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
A medium-sized species of Apristurus of the brunneus group with the following combination of characters: shiny white iris on fresh specimen; brownish black colouration; short interspace from P1 free rear tip to P2 origin, subequal to internarial width; midpoint of the total length located well behind cloaca; pectoral fins large, width about 2.7 times P1 tip-P2 origin; long anal-fin base, longer than D1 insertion-D2 insertions; first dorsal fin located well behind pelvic-fin insertion; first dorsal fin markedly smaller than second one; long caudal fin terminal lobe, its length more than twice its height; no denticles in the mouth; very short pyloric stomach; intestinal spiral valves 16; monospondylous vertebrae 36; precaudal diplospondylous vertebrae 37 (Ref. 92346).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Iglésias, S.P., 2012. Apristurus nakayai sp. nov., a new species of deepwater catshark (Chondrichthyes: Pentanchidae) from New Caledonia. Cybium 36(4):511-519. (Ref. 93246)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
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