分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Acestrorhynchidae (Smallscale pike characins)
狼牙脂鯉科 (Smallscale pike characins) > Acestrorhynchinae
Etymology: Acestrorhynchus: Greek, agkistron = hook + Greek, rhyngchos = snout (Ref. 45335).
Issue
See Menezes, 1969:78 for detailed description.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Amazon and Orinoco River basins.
南美洲: 亞馬遜河與奧里諾科河河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 27925)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Differs from A. grandoculis and A. microlepis for lack of a small, dark spot behind the opercle. Scales on lateral line 74-85; scale rows between the lateral line and the dorsal fin 12-14. Distinguishable from the remaining Venezuelan congeners, except A. nasutus, by its small size up to 9.15 cm SL and by the presence of a narrow, dark line that extends from behind the opercle to about two thirds of the body length (Ref. 52916).
因為沒有在鰓蓋後面的一個小又深色的斑點，有別於 A. grandoculis 與 A. microlepis 。 在側線 74-85 上的鱗片; 在側線與背鰭 12-14 之間的鱗片列. 除了 A. nasutus 以外,可與剩餘的委內瑞拉同類區別, 用它的體型小向上到 9.15 公分 SL 而且藉由有狹窄，從鰓蓋到大約三分之二的體長的在後延伸的黑色線條.(參考文獻 52916)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 亞馬遜河與奧里諾科河河流域。
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 13 February 2020
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00338 - 0.01626), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
