Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Ancistrinae
Etymology: Ancistrus: Greek, agkistron = hook (Ref. 45335); aguaboensis: Named for Água Boa, its type locality; an adjective.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Upper Tocantins River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.7 cm SL male/unsexed; (Ref. 36713)
Morphology | Morphometrics
soft rays: 4;
Vertebrae: 28. A small species with very depressed, wide body; short dorsal fin (3.6-4.1 times in SL); wide mouth; a small area of supraoccipital plate often depressed, slightly granular or without odontodes; exposed part of nuchal plate minute or totally covered by skin; dorsal and fins brownish with numerous small whitish spots, lips and belly yellowish, totally or mostly unpigmented. Dermal plates along dorsal-fin base 6-7. Short interdorsal distance, 5.1-5.5 times in SL.
Occurs in an area characterized by riffles with predominantly rocky substratum with some gravel and sand.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fisch-Muller, S., R. Mazzoni and C. Weber, 2001. Genetic and morphological evidences for two new sibling species of Ancistrus (Siluriformes: Loricariidae) in upper rio Tocantins drainage, Brazil. Ichthyol. Explor. Freshwat. 12(4):289-304. (Ref. 40950)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00370 - 0.01627), b=3.07 (2.89 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .