分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers)
鱂形目 (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines)
溪鱂科 (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335).
More on authors: Costa & Brasil.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.0 - 6.5; 非遷移的. 高海拔; 15°C - 25°C (Ref. 13614)
South America: Middle São Francisco River basin in Brazil.
南美洲: 中央 Sao 弗朗西斯科河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 40938); 8.9 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 17 - 19; 臀鰭軟條: 19 - 22; 脊椎骨: 35 - 36. Second pharyngobranchial elongated. Convex dorsal profile above pectoral-fin base not pronounced. Larger males (>9 cm SL) with deeper body (35.5 - 36.8 % SL). Pelvic fin longer with tip reaching base of 4th anal fin rays. Dorsal-fin rays 17-19 in males, 17 in females; anal-fin rays 20-22 in males, 19-21 in females; caudal fin rays 30. Caudal and pectoral fin rounded. Snout gently pointed with lower jaw slightly elongated. Supraorbital neuromasts 31-42 (Ref. 40938).
第二個咽鰓骨延長。 不明顯的中凸的背面輪廓胸鰭上方基底。 具有較深的身體的較大的雄性 (>9 公分 SL)(35.5- 36.8% SL). 腹鰭較長的，達到第 4個臀鰭棘條的基底的頂端。 在雄性中的背鰭鰭條 17-19,17 在雌性中; 在雄性中的臀鰭棘條 20-22,19-21 在雌性中; 尾鰭鰭條 30. 尾部的與胸鰭圓的。 吻逐漸尖具有下頜些微地延長。 眶上的神經瘤 31-42.(參考文獻 40938)
Bottom spawner, ? months incubation (Ref. 27139).
底部產卵魚,? 個月孵育時間.(參考文獻 27139)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 中央 Sao 弗朗西斯科河流域。
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)
IUCN 瀕危狀態 (Ref. 130435)
瀕危 (EN) (B1ab(ii,iii,iv)); Date assessed: 07 November 2018
人類使用
漁業: 商業性; 水族館: 商業性
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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=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
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).
