Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Siluriformes
(Catfishes) > Loricariidae
(Armored catfishes) > Hypostominae
Etymology: Pseudancistrus: Greek, pseudes = false + Greek, agkistron = hook (Ref. 45335); pectegenitor: Derived from the Latin pecten (quill) and genitor (father), in reference to the hypertrophied odontodes of the snout, pectoral spine and evertible cheek plates, and the fact that one presumably adult male was collected while caring large brood of young..
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: main channel of the Rio Orinoco above Raudales Autures and Rio Casiquaire in Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.2 cm SL male/unsexed; (Ref. 58451)
Facultative air-breathing in the genus (Ref. 126274); Inhabits flowing water associated with large rock outcrops in main river channel (Ref. 58451).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lujan, N.K., J.W. Armbruster and M.H. Sabaj, 2007. Two new species of Pseudancistrus from southern Venezuela (Siluriformes: Loricariidae). Ichthyol. Explor. Freshwat. 18(2):163-174. (Ref. 58451)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00712 - 0.03216), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (19 of 100).