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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); auronigrus: The specific name is derived from the Latin aurum (gold) and nigra (black), in allusion to the distinctive gold and black life coloration.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の. Tropical
Asia: Sungai Kinarom draining into Marudu Bay in Sabah, Malaysia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 5.5 cm SL オス/雌雄の選別がない; (Ref. 57871)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 7; 臀鰭: 4; 脊つい: 30. Can be distinguished from its congeners by possessing the following unique combination of characters: body black, dorsum with 7 thin gold bars, side with gold bars complete or interrupted to form black blotches; head dorsum black with fine gold reticulate pattern when alive, when preserved the gold turns cream; absence of secondary rostrum; absence of a postoral pouch; gill slit vertical, subopercular groove absent; a rounded snout when viewed dorsally; presence of sublacrymal groove; abdomen without scales; lateral line with 64 scales; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).
Body shape (shape guide): elongated.
Recorded from fast flowing rocky streams (Ref. 84801).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Tan, H.H., 2006. The Borneo suckers. Revision of the torrent loaches of Borneo (Balitoridae): Gastromyzon, Neogastromyzon). Kota Kinabalu, Sabah, Malaysia : Natural History Publications (Borneo) in association with Raffles Museum of Biodiversity Research. vii, 245 p. : ill. (some col.), maps ; 26 cm. (Ref. 57871)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
絶滅危惧に近い (NT) (B1ab(i,ii,iii)+2ab(i,ii,iii)); Date assessed: 30 December 2018
Human uses
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00268 - 0.01421), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.2 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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