Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Trichomycteridae
(Pencil or parasitic catfishes) > Sarcoglanidinae
Etymology: Stenolicmus: Greek, stenos = narrow + Greek, likmos, ou = sieve (Ref. 45335); ix: The specific epithet, ix, refers to the Mayan word "Ix", term used to describe the jaguar (Panthera onca). The name refers to the color pattern of grouped patches scattered from the flanks to the dorsum, unique among its congeners and similar to the jaguar. Name in apposition. Gender masculine.
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?
Countries | FAO areas | Ecosystems | Occurrences |
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Point map | Introductions | Faunafri
South America: Brazil. Known only from the type locality in the lower Amazon basin at the igarapé
Curuá, Alenquer, Pará State (Ref. 86403).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL male/unsexed; (Ref. 86403)
Morphology | Morphometrics
Stenolicmus ix can be distinguished from S. sarmientoi by the length of the nasal barbels, reaching the base of the first opercular odontodes (vs. reaching anterior margin of eyes); length of maxillary barbels reaching posterior margin of opercular odontode plate (vs. reaching posterior margin of interopercular odontode plate); seven well-developed opercular odontodes (vs. six); seven well-developed interopercular odontodes (vs. five or six); pelvic fin rays, i+4 (vs. iv); color pattern of posterior region of trunk composed of agglomerated chromatophores forming circular patches twice the diameter of the eye (vs. without circular patches twice the diameter of the eye); large eyes with 11.8% HL (vs. 6%); caudal peduncle depth, 11.6% SL (vs. 8.5–9.5%); absence of dark bar at the base of the caudal fin (vs. presence of dark bar); head length, 17.9% SL (vs. 14.9–15.1%); and unbranched rays of caudal fin long, reaching distal margin of fin (vs. rays short, not reaching half the length of caudal fin) (Ref. 86403).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wosiacki, W.B., D.P. Coutinho and L.F. de Assis Montag, 2011. Description of a new species of sand-dwelling catfish of the genus Stenolicmus (Siluriformes; Trichomycteridae). Zootaxa 2752:62-68 (Ref. 86403)
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
= 0.7500 [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) .