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); baskini: Named for Jonathan Baskin for his significant contributions to Neotropical ichthyology including the description of the genus Scoloplax.
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?; 5°S - 6°S, 60°W -
South America: Brazil. Rio Aripuanã, a right-bank tributary of the middle rio Madeira (Ref. 79026).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.6 cm SL male/unsexed; (Ref. 79026)
Morphology | Morphometrics
Vertebrae: 25 - 27. This species is distinguished from its congeners by the following unique characters: ventral midline plates between the anus and caudal peduncle has 2 longitudinal parallel rows of odontodes not covered by skin; all rays of pectoral and pelvic fins simple, unbranched; large specimens with odontodes in abdominal area between pelvic-fin bases and immediately anterior to genital papilla; mesethmoid has a thickened triangular anterior process; and larger specimens with small odontodes on first and second pelvic-fin rays (Ref. 79026).
This species was found among leaf litter in small clearwater tributaries of the middle part of rio Aripuanã (Ref. 79026).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rocha, M.S, R.R. de Oliveira and L.H. Rapp Py-Daniel, 2008. Scoloplax baskini: a new spiny dwarf catfish from rio Aripuanã, Amazonas, Brazil (Loricarioidei: Scoloplacidae). Neotrop. Ichthyol. 6(3):323-328. (Ref. 79026)
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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), 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) .