Klassifizierung / Names
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Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: colossus: Name 'colossus from an Ancient Greek word 'kolossós', meaning 'large/giant statue', in allusion to the relatively large, robust, armored body of the new species. A noun in apposition.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser demersal. Tropical
South America: Brazil.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 4.8 cm SL Männchen/unbestimmt; (Ref. 137798)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 2; Rückenflossenweichstrahlen (insgesamt) : 8; Afterflossenweichstrahlen: 6 - 7. This species is distinguished from its congeners by the following set of characters: ventral surface of trunk with small- to relatively large-sized coalescent platelets, forming a typical mosaic-like pattern; a large, arched dark brown or black patch present, extending from interopercle region to posterior process of parieto-supraoccipital, transversally crossing orbit and forming typical mask-like blotch; conspicuous dark markings on caudal fin absent; longitudinal rows of dark blotches on flanks absent; region of first dorsolateral body plate surrounding posterior process of parieto-supraoccipital clearly lighter than remaining portions of head, forming a V-shaped pattern in dorsal view; presenting anterior portion of dorsal fin with conspicuous concentration of dark brown or black chromatophores, forming a dark patch (Ref. 137798).
Body shape (shape guide): short and / or deep; Cross section: oval.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Tencatt, L.F.C., S. Grant and R.F. Bentley, 2023. A new color-changing species of Corydoras (Siluriformes: Callichthyidae)
from the rio Jutaí, Brazilian Amazon. Neotrop. Ichthyol. 21(4):e230105. (Ref. 137798)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.00934 - 0.06448), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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