Classificatie / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: polyodon: From the Greek polys, meaning many, and odon, meaning tooth, in reference to its higher number
of teeth compared to the other species. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal. Tropical
South America: tributaries to the rio Verde, a tributary to the upper rio Paraná basin in Mato Grosso do Sul, Brazil.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 3.7 cm SL mannelijk / geslacht onbekend; (Ref. 93039)
Dorsale stekels (totaal) : 2; Dorsale zachte stralen (totaal) : 7 - 8; Anale stekels: 1; Anale zachte stralen: 5; Wervels: 29. Distinguished from all congeners by having the following characters: 19-31 premaxillary teeth
(vs. 10-20); 18-27 dentary teeth (vs. 11-19); caudal peduncle depth 6.2-7.6% (vs. 7.6-11.5% SL); dorsal-fin spinelet rectangular in shape (vs. triangular or quadrangular); suture in the posteromesial portion of the paired basipterygium long- same size of the basipterygium medial cartilage (vs. suture smaller-one to two third of the basipterygium medial cartilage) (Ref. 93039).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Calegari, B.B., P. Lehmann A. and R.E. Reis, 2013. Two new species of cascudinhos of the genus Otothyropsis (Siluriformes: Hypoptopomatinae) from the rio Paraná basin, Brazil. Zootaxa 3619(2):130-144. (Ref. 93039)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).