分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); umbrus: From the Latin adjective umbra, meaning shade or shadow, in allusion to the dusky body coloration; also to the shadow cast on the throat area by the chin (the basins where this species occurs is at the throat region) of the Hog's head of Borneo island..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
Asia: Northeastern Borneo in the Kalabakan and Sebuku River basins.
亞洲: 在 Kalabakan 與 Sebuku 河流域的婆羅洲東北部。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 57871)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 8; 臀鰭軟條: 5; 脊椎骨: 29 - 30. Can be distinguished from other species of the genus by possessing the following unique combination of characters: gill slit angular; subopercular groove present and continuous to pectoral fin origin; body dark brown; head dorsum dark brown; sublacrymal groove present; a rounded snout when viewed dorsally; secondary rostrum absent; post-oral pouch absent; abdomen without scales; lateral line scales 50-52; pelvic fin overlapping anal fin origin, adpressed dorsal fin overlapping level of anal fin origin (Ref. 57871).
能被藉由持有下列的獨特組合特徵與其他種本屬區分: 鰓縫有角的; 子鰓蓋凹槽呈現與連續的對胸鰭起源; 身體深褐色的; 頭部背面深褐色的; sublacrymal 凹槽呈現; 一個圓形的吻當背面看了; 第二次的喙不存在; 後口部的小袋不存在; 腹部沒有鱗片; 側線鱗片 50-52; 腹鰭部分重疊的臀鰭起源, 緊貼的背鰭部分重疊程度的臀鰭起源.(參考文獻 57871)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
亞洲: 在 Kalabakan 與 Sebuku 河流域的婆羅洲東北部。
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 瀕危狀態 (Ref. 130435)
近危 (NT) (B1ab(i,ii,iii)); Date assessed: 01 January 2019
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00256 - 0.01420), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.3 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
