Classification / Names
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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); argos: The specific name argos (Greek.), meaning a hundred-eyed monster, refers to the eye-spotted color pattern of the new species, not forming vermiculations.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς); εύρος βάθους 0 - ? m (Ref. 90333). Tropical; 14°C - 19°C (Ref. 90333)
South America: Rio Doce basin in Brazil.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 11.7 cm SL αρσενικό/απροσδιόριστο; (Ref. 90333)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Μαλακές ραχιαίες ακτίνες (συνολικά) : 8 - 9; Μαλακές εδρικές ακτίνες: 6 - 7. Distinguished by the following characters: pectoral fins with six branched rays; pectoral-fin ray prolonged as a filament; presence of pelvic fins; tip of nasal barbels extending to posterior border of opercular plate of odontodes; presence of a large foramen for ramus lateralis accessorius facialis, visible in dorsal view, in the parietosupraoccipital bone; transverse and straight border between the parietosupraoccipital and frontal bones; body covered with spots that seldom attain eye diameter; pelvic-fin origin placed one or two ocular diameters anterior to dorsal-fin origin; absence of spots fused as elongated marks on dorsum or flank (Ref. 90333).
Body shape (shape guide): elongated.
Occurs in streams with depth and temperature varying from 13 to 44 cm and from 14 to 19°C. Preys on tadpoles of Scinax gr. catharinae under laboratory conditions (Ref. 90333).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Lezama, A.Q., M.L. Triques and P.S. Santos, 2012. Trichomycterus argos (Teleostei: Siluriformes: Trichomycteridae), a new species from the Doce River Basin, Eastern Brazil. Zootaxa 3352:60-68. (Ref. 90333)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00358 - 0.02025), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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