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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 Ökologie

; süßwasser demersal. Tropical

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South America: tributaries to the rio Verde, a tributary to the upper rio Paraná basin in Mato Grosso do Sul, Brazil.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 3.7 cm SL Männchen/unbestimmt; (Ref. 93039)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 2; Rückenflossenweichstrahlen (insgesamt) : 7 - 8; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 5; Wirbelzahl: 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 18 May 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Otothyropsis polyodon Calegari, Lehmann A. & Reis, 2013