分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335); cremnobates: The name cremnobates is from the Greek, meaning frequenter of steep places,referring to the occurrence of the new species in altitudes higher than 800 meters. Noun in apposition.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性. 亞熱帶的
South America: upper Jacui and Maquiné River basins in Brazil.
南美洲: Jacui 上游與 Maquine 河流域。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 8.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 38376)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 9; 臀棘: 0; 臀鰭軟條: 18 - 22; 脊椎骨: 34 - 36.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Jacui 上游與 Maquine 河流域。
Bertaco, V.A. and L.R. Malabarba, 2001. Description of two new species of Astyanax (Teleostei: Characidae) from headwater streams of Southern Brazil, with comments on the "A. scabripinnis species complex". Ichthyol. Explor. Freshwat. 12(3):221-234. (Ref. 41290)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
近危 (NT) (B1b(iii)); Date assessed: 07 November 2018
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00493 - 0.02437), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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