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: Stauroglanis: Greek, stauros = cross + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish. Glanis was the sacred spirit of springs in the town of Glanum and there was the Glanicae, a triad of local mother goddesses (Ref. 45335).
Environment / Climate / Range
Freshwater; demersal. Tropical, preferred ?
South America: Daraá River, Negro River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.7 cm SL male/unsexed; (Ref. 52491)
The species is rheophilic. Dwells on patches of loose sand where water flow forms ephemeral sand ripples. Diurnal and mostly visually oriented, forages on aquatic immature benthic insects (dipterans and coleopterans). Moves along the ripple grooves while scanning the bottom back and forth, alternating between adjacent grooves. Feeding activity peaks at late morning and afternoon. When disturbed buries in the sand, and at night remains buried. Seasonal reproduction indicated by mature females caught in the wet months (Ref. 52491).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Zuanon, J. and I. Sazima, 2004. Natural history of Stauroglanis gouldingi (Siluriformes: Trichomycteridae), a miniature sand-dwelling candiru from central Amazonia streamlets. Ichthyol. Explor. Freshwat. 15(3):201-208. (Ref. 52491)
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
= 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
Trophic Level (Ref. 69278
): 3.1 ±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) .