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) >
Anostomidae (Headstanders)
小口脂鯉科 (Headstanders)
Etymology: Leporinus: Latin, lepus, leporis = rabbit (Ref. 45335); geminis: The specific name geminis is in allusion to the similarity showed by the young of this species with its congeneric Leporinus unitaeniatus.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South America: Rio Tocantins, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 80692)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11 - 12; 臀鰭軟條: 9. Differs from its congeners by the following characters: one longitudinal and discontinuous
narrow dark brown stripe running inconspicuously from a vertical through middle of dorsal fin to base of caudal peduncle along lateral line; two or three large dark brown vertically elongated blotches along middle trunk: first at the vertical through dorsal-fin, second anterior to adipose fin and third on the caudal peduncle; mainly in young specimens, 12-13 short transversal dark brown bars meeting small dark brown blotches laterally; snout length 39 to 47.6% in head length; orbital diameter 21.4 to 27.8% of head length; body depth 21.6 to 26.0% of SL; sub-inferior mouth (inferior margin of superior lip horizontally aligned with the inferior margin of infraorbital bones); 4 teeth on each premaxillary and dentary; teeth gross incisive-like, forming
an arched cutting edge, decreasing in size from the symphysal largest pair; 40 to 42 scales in the lateral line, 5,5 or 6 scales series above and 5 under lateral line and 16 circumpeduncular series of scales (Ref. 80692).
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairs breed on densely grown weedy places (Ref. 205).
Garavello, J.C. and G.M. Santos, 2009. Two new species of Leporinus Agassiz, 1829 from Araguaia-Tocantins system, Amazon basin, Brazil (Ostoriophysi, Anostomidae). Brazilian J. Biol. 69 (1):109-116. (Ref. 80692)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 19 June 2020
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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=0.01047 (0.00456 - 0.02402), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.4 ±0.1 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 (12 of 100).
