Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Hypoptopomatinae
Etymology: Parotocinclus: Greek, para in the side of + greek, ous, otis = ear + Greek, kygklos, ou = a fish (Ref. 45335); arandai: Named for Arion Túlio Aranda in recognition of his talent for catching fish and knowledge of their habits.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: tributaries of the middle and upper rio Jucuruçu and upper rio Buranhém in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.3 cm SL male/unsexed; (Ref. 81204)
Morphology | Morphometrics
soft rays: 6;
Vertebrae: 22. The lack of triangular patch of dark pigmentation at the anterior dorsal-fin base separates this species from all congeners (except Parotocinclus collinsae) of the Guyana Shield, Amazonas and Orinoco basin. Can be distinguished from Parotocinclus collinsae by the absence of the accessory teeth on the premaxilla and dentary. Diagnosed from all congeners of the Atlantic coastal basins of southeastern and eastern Brazil by having the branched rays and interradial membranes of the pectoral and pelvic fins unpigmented in ventral view; the rostral plate not exposed ventrally (except Parotocinclus bahiensis, Parotocinclus spilurus and Parotocinclus prata). Differs from most species of Parotocinclus, except Parotocinclus cristatus and Parotocinclus cesarpintoi, by having a tuft of hypertrophied odontodes on the supraoccipital and extensively naked abdomen in adults, with a mosaic of few rounded platelets of irregular size and distributed over the pre-anal region (except Parotocinclus bahiensis, Parotocinclus minutus, Parotocinclus spilosoma, Parotocinclus cearensis, Parotocinclus cesarpintoi, and Parotocinclus prata). Additional characters useful the identification include: pectoral girdle exposed medial and laterally; plates between anal and caudal fins 10; body depth 16.1-18.6% SL; orbital diameter 14.8-19.3% HL; all paired
ribs associated with connective tissues of vertebrae; and abdominal lateral plates 2-4 (Ref. 81204).
Found in clear, shallow waters, with depth of about 0.3 m, in moderate portions of rivers, with sandy or gravel bottom (Ref. 81204).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sarmento-Soares, L.M., P. Lehmann A. and R.F. Martins-Pinheiro, 2009. Parotocinclus arandai, a new species of hypoptopomatine catfish (Siluriformes: Loraicariidae) from the upper rios Jucuruçu and Buranhém, States of Bahia and Minas Gerais, Brazil. Neotrop. Ichthyol. 7(2):191-198. (Ref. 81204)
IUCN Red List Status (Ref. 119314)
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=0.00550 (0.00225 - 0.01343), b=3.11 (2.90 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.1 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .