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Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: reisi: Named after Roberto Esser dos Reis, for his many contributions to Neotropical ichthyology, including studies in callichthyid fish; noun in the genitive case.
Eponymy: Dr Roberto Esser dos Reis is a Brazilian ichthyologist. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; profondeur 0 - 1 m (Ref. 138468). Tropical
Distribution
Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
South America: Brazil.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 5.4 cm SL mâle / non sexé; (Ref. 138468)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
This species is distinguished by the following characters: infraorbital 2 expanded ventrally, adjacent to small, almost imperceptible, naked area between sphenotic, compound pterotic, opercle and preopercle; with a roughly oblique, elongate, dark brown blotches along body; large specimens with cranial fontanel completely occluded, leaving just a shallow fossae, delimited by frontal bones, and reaching
anterior tip of parieto-supraoccipital; absence of a black dot on the base of median caudal-fin rays and sexually dimorphic features inconspicuous, i.e. cheek
region similar in males and females, with only minute, scattered odontodes in the former, dorsal and pectoral fins of males slightly longer than in females; tip of snout roughly truncate (Ref. 138468).
Body shape (shape guide): elongated; Cross section: oval.
This species was found mainly in very small (0.5-2 m wide) and shallow streams (30-60 cm depth), with slow current water and surrounded by relatively preserved riparian vegetation; bottom was sandy, sometimes covered with a thin layer of mud or fallen leaves (although there were rocky bottom stretches in the same creeks, the species was never found there). The streams may have a small amount of submerged vegetation. Associated species collected along with this species were Astyanax eigenmanniorum, Cheirodon interruptus, Corydoras paleatus, Heptapterus mustelinus, H. sympterygium, Mimagoniates inequalis, Phalloceros caudimaculatus, Pseudobunocephalus iheringii, Rhamdia sp. and Scleronema sp. (Ref. 138468).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Britto, M.R., C.K. Fukakusa and L.R. Malabarba, 2016. New species of Scleromystax Günther, 1864 (Siluriformes: Callichthyidae) - extending the meridional distribution of genera endemic to the Atlantic Forest. Neotropical Ichthyol. 14(3):e150158: [1-10]. (Ref. 138468)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00741 (0.00287 - 0.01912), b=3.14 (2.91 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.0 ±0.3 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |