Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Scoloplacidae
(Spiny dwarf catfishes)
Etymology: Scoloplax: Greek, skoloplax = a thorned plate (Ref. 45335); baileyi: Named for Dr. Reeve M. Bailey (1911-2011), for his remarkable contributions to ichthyology including the description of the genus Scoloplax and its type species, S. dicra.
Environment / Climate / Range
Freshwater; benthopelagic; depth range 0 - 2 m (Ref. 92919). Tropical, preferred ?
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.5 cm SL male/unsexed; (Ref. 92919)
Found in Rio Unini basin, in mid-sized streams within dense forest vegetation and these streams are blackwater throughout most of the year. During the dry season, some streams carry a small amount of sediment and present higher pH and conductivity values. Substrate consists of sand and silt and collections done using handnets sweeping stream bottom in depths that ranged
from 0.4 to 1.5 meters. Stream temperature varied from 24.8 °C to 26.7 °C, pH from 5.2 to 6.5, conductivity from 8.8 to 18.6 µS/cm, and dissolved oxygen from 1.07 to 6.68 mg/l. Also collected together with this species are at least 40 species, including other undescribed species, from different taxonomic groups (Ref. 92919).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rocha, M., H. Lazzarotto and L.R. Py-Daniel, 2012. A new species of Scoloplax with a remarkable new tooth morphology within Loricarioidea (Siluriformes: Scoloplacidae). Copeia 2012(4):670-677. (Ref. 92919)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg 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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.4 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) .