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: Cordylancistrus: Greek, kordyle, -es = young tunna + Greek, agkistron = hook (Ref. 45335); nephelion: Derived from the Greek nephelion, meaning cloudlike spots, in reference to the color pattern of the species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical; 15°C - 20°C (Ref. 56900)
South America: Tuy River basin in Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.9 cm SL male/unsexed; (Ref. 56900)
Morphology | Morphometrics
(total): 8. Differs from other species of Cordylancistrus by its unique color pattern: head and body blackish to greenish brown with white irregular spots; abdomen uniformly white; and all fins with whitish spots that simulate bands (Ref. 56900).
Inhabits rivers with transparent waters, moderate to strong flow and bottom generally consisting of stone, gravel and sand (Ref. 56900).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Provenzano, F. and N. Milani, 2006. Cordylancistrus nephelion (Siluriformes, Loricariidae), a new and endangered species of suckermouth armored catfish from the Tuy River, north-central Venezuela. Zootaxa 1116:29-41. (Ref. 56900)
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
= 0.5312 [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
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .