Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Monotocheirodon: Greek, monos = one + Greek, cheir = hand + Greek, odous = teeth (Ref. 45335); kontos: The specific name kontos is Greek masculine meaning a long pole This is used in reference to the prominent male inseminating organ. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Río Madre de Dios basin in Peru.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.4 cm SL hane/ej könsbestämd; (Ref. 94699); 3.7 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 9 - 10; Ryggkotor: 37 - 39. This species can be distinguished from its congeners by having the following characters: urogenital papilla present in sexually active males and females (vs. absent in M. pearsoni); urogenital papilla is about equal the length of anal fin-base (vs. half length of anal-fin base in M. drilos); dorsal fin height 13.4-15.8% SL in females and juveniles (vs. 16.1-17.8% SL in M. drilos); and 7 premaxillary tooth cusps (vs. 5 in M. drilos) (Ref. 94699).
Occurs sympatrically with Monotocheirodon drilos (Ref. 94699).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Menezes, N.A., S.H. Weitzman and I. Quagio-Grassiotto, 2013. Two new species and a review of the inseminating freshwater fish genus Monotocheirodon (Characiformes: Characidae) from Peru and Bolivia. Papéis Avulsos de Zoologia (Museu de Zoologia da Universidade de São Paulo) 53(10):129-144. (Ref. 94699)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00672 - 0.03736), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
