Classification / Noms
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
>
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); teiniagua: Named for Teiniaguá, a princess transformed to a witch (a character from a fictional tale entitled ‘Salamanca do Jarau’ popularized in the Rio Grande do Sul State by the writer Simões Lopes Neto) that lives in a cave at the hill ‘Cerro do Jarau’, which is inserted in the area of distribution of the new species; noun in apposition.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Tropical
South America: endemic to the drainage of the río Cuareím (Uruguay), a tributary to the left bank of lower rio Uruguay.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 4.5 cm SL mâle / non sexé; (Ref. 122319)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 8 - 10; Rayons mous anaux: 6; Vertèbres: 34 - 35. This species is distinguished from all its congeners by the remarkable reduction in the laterosensory system lacking the pores s1, s2, s3 and s6 in the supraorbital line and pore i10 in the infraorbital line (vs. presence of, at least, pore i10) and the lower number of pterygiophores of dorsal fin 8 (vs. 9-14) (Ref. 122319).
Cross section: oval.
Occurs in rivers and streams but has not been collected with its congeners. Stomachs of two specimens contained immature aquatic Diptera (Chironomidae and Simuliidae) and Ephemeroptera (Ref. 122319).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Ferrer, J. and L.R. Malabarba, 2020. Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands. Neotrop. Ichthyol. 18(2):1-81. (Ref. 122319)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
🛈
