Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Nematogenyidae
Etymology: Nematogenys: Greek, nema, -atos = filament + Greek, genys, -yos = face, jaw (Ref. 45335). More on author: Guichenot.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range - m (Ref. ), usually - m (Ref. ). Temperate; 0°C -
South America: Originally throughout most of central Chile, in the latitudes approximately between present cities of Valparaiso in the north to Osorno in the south. Currently restricted to few spots mainly in regions of Concepcion, Rancagua and Angol.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.7 cm NG male/unsexed; (Ref. 39969)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
de Pínna, M.C.C., 2003. Nematogenyidae (mountain catfishes). p. 268-269. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 39969)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .