Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: Brochis: Greek, brogchia, -as = throat, trachea (Ref. 45335); costai: Named after Wilson Costa, who first collected and identified the species as new, in 1999.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 137524)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished by the following characters: presence of series of large irregular dark brown blotches on dorsal and lateral surfaces of body from anteriormost lateral plates to caudal peduncle; five well delimited large dark brown blotches from the caudal fin base to the posterior margin of opercle, along the junction of dorsal and ventral plates on the midline of body, and lower region of cleithrum dark ; parapophyses of fourth free vertebra reduced and separated from each other, not fused into a haemal arch; 5 pairs of ribs; odontodes present on infraorbitals and opercle; nuchal plate not in contact with supraoccipital plate; first haemal arch present on sixth free vertebra, precaudal vertebra 7-9; non-segmented rays on A i; short head length 32.0-35.8 % mm SL, and head depth 90.7-96.6 % mm HL (Ref. 138431).
Body shape (shape guide): elongated; Cross section: angular.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dias, A.C., L.F.C. Tencatt, F.F. Roxo, G.S.C. da Costa Silva, S.A. Santos, M.R. Britto, I. Taylor and C. Oliveira, 2024. Phylogenomic analyses in the complex Neotropical subfamily Corydoradinae (Siluriformes: Callichthyidae) with a new classification based on morphological and molecular data. Zool. J. Linn. Soc. 203(3):1-31. (Ref. 137524)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00287 - 0.01912), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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