Classification / Names
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Characiformes (Characins) >
Anostomidae (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
Écologie
; eau douce benthopélagique. Tropical
South America: Rio Tocantins, Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm SL mâle / non sexé; (Ref. 80692)
Description synthétique
Morphologie | Morphométrie
Rayons mous dorsaux (Total): 11-12; Rayons mous anaux: 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
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.4 ±0.1 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
