Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Aspredinidae
(Banjo catfishes) > Aspredininae
Etymology: Bunocephalus: Greek, byneo = to fill up, to swell + Greek, kephale = head (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Paraguay-Paraná and Uruguay River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 81048)
Facultative air-breathing in the genus; Inhabits clearwater streams with sandy to muddy bottom, up to 2.5 m deep, with water flow up to 50 cm/sec. Supposedly an air-breather that hides amidst plant debris on the bottom during the day. Feeds mainly on chironomid larvae and oligochaetes, besides larvae of several aquatic insects (Ref. 39865).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Friel, J.P., 2003. Aspredinidae (Banjo catfishes). p. 261-267. 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. 36695)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00232 - 0.00985), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.33 se; based on food items.
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).