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) > Trichomycterinae
Etymology: Ituglanis: Greek, itys, ityos = circle + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); ina: Name from the term 'ina' (= person), a self-designation of the Karajás (Carajás) indigenous people that inhabit the Serra dos Carajás. Macro-Gê linguistic trunk, Carajás linguistic family; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 91742)
Morphology | Morphometrics
This species is distinguished from its congeners by having a vertical dark bar on the base of the caudal-fin rays (vs. none), and by the lateral line (LL1 and LL2, rarely LL3) followed by a middle trunk line composed of 1-30 tiny neuromasts, extending to flank, below the dorsal fin or, at times, to caudal peduncle near the caudal-fin base, in all specimens larger than 35.0 mm SL (vs. tiny neuromasts absent); differs further from its congeners except I. parkoi by its general body color gray, dark on the dorsal region and gradually pale ventrally, no spots nor longitudinal stripes (vs. no general gray color, with spots or longitudinal stripes); differs from I. parkoi by the fewer opercular odontodes, 10-12 (vs. 22); and by the caudal-fin margin circular with attenuated edges (vs. truncated) (Ref. 91742).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wosiacki, W.B., G.M. Dutra and M.B. Mendonça, 2012. Description of a new species of Ituglanis (Siluriformes: Trichomycteridae) from Serra dos Carajás, rio Tocantins basin. Neotrop. Ichthyol. 10(3):547-554. (Ref. 91742)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00197 - 0.01219), b=3.08 (2.86 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±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) .