Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Incertae sedis
Etymology: Nannoplecostomus: Name from Greek 'nannos' meaning dwarf, and 'plecostomus' for the former generic name of the species currently included in the well-known Hypostominae genus Hypostomus; in allusion
to the small adult size of the type-species.; eleonorae: Named for Brazilian biospeleologist Eleonora Trajano; genitive noun.
Environment / Climate / Range
Marine; freshwater; benthopelagic. Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - 1.62 cm
Max length : 2.2 cm SL male/unsexed; (Ref. 92524); 2.2 cm SL (female)
Morphology | Morphometrics
This species is distinguished by the following characters: unique lateral dermal plate arrangement, in which the mid-dorsal and median plate series are greatly reduced in number of elements; thus, most of the body is covered by only three series of plates (viz., dorsal, mid-ventral, and ventral plate series) posteriorly from the abdomen to caudal peduncle (vs. typically five lateral dermal plate series present, plate series decreasing to three series, viz. dorsal, median, and ventral plate series, only at the caudal peduncle in most other Loricariidae genera) (Ref. 92524).
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: Central Brazil.
The type-locality, the Rio da Lapa, is a moderately sized (8-12 meters wide), fast-flowing, clear-water river, with a predominantly rocky bottom, running across the savannah-like cerrado vegetation. Also known in the São Domingos karst area, situated immediately below the river resurgences of several tributaries of the Rio São Domingos, including the Rio da Lapa. Not recorded within the subterranean river stretches (Ref. 92524).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ribeiro, A.C., F.C.T. Lima and E.H.L. Pereira, 2012. A new genus and species of a minute suckermouth armored catfish (Siluriformes: Loricariidae) from the Rio Tocantins Drainage, Central Brazil: the smallest known loricariid catfish. Copeia 2012(4):637-647. (Ref. 92524)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .