Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Loricariinae
Etymology: Rineloricaria: Greek, rhinos = nose + Latin, lorica, loricare = cuirass of corslet of leather; 1706 (Ref. 45335); malabarbai: Named for Luiz Roberto Malabarba, for his many important contributions to neotropical ichthyology. More on authors: Rodriguez & Reis.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Rio Jacuí and Rio Camaquã drainages in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.2 cm SL male/unsexed; (Ref. 116915)
Morphology | Morphometrics
Diagnosed from all congeners except Rineloricaria maquinensis by its unique pattern of abdominal plates: abdomen almost completely naked, except for a single preanal complex of plates, connected to the lateral abdominal plates by one or two small squarish platelets at the base of pelvic-fin spine (vs. squarish platelets absent in specimens with naked or almost naked abdomens). Can be differentiated from Rineloricaria maquinensis by the following body proportions: longer predorsal length (31.2-35.0 vs. 28.2-31.5% SL), shorter postanal length (52.3-56.4 vs. 55.5-62.5% SL), longer abdominal length (15.2-17.8 vs. 13.6-15.5% SL), wider cleithral width (16.8-19.6 vs. 13.7-16.5% SL), and a deeper head (43.2-64.8 vs. 37.4-43.9% HL). Differs further Rineloricaria aequalicuspis by its asymmetrical tooth cusps (vs. almost symmetrical cusps) (Ref. 75788).
Occurs in slow to fast flowing watercourses, with clear or brown water and usually on rocky bottom (Ref. 75788).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rodriguez, M.S. and R.E. Reis, 2008. Taxonomic review of Rineloricaria (Loricariidae: Loricariinae) from the Laguna dos Patos drainage, Southern Brazil, with the descriptions of two new species and the recognition of two species groups. Copeia 2008(2):333-349. (Ref. 75788)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00230 - 0.00792), b=3.19 (3.03 - 3.35), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.6 ±0.2 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .