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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Olyra: Greek, olyra = a kind of grain (Ref. 45335).
Eponymy: Dr Robert Collett (1842–1913) was a Norwegian zoologist and ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Taxonomic Remarks
After Bockmann & de Pinna (2004: Ref. 55745), possibly a synonym of Olyra longicaudata McClelland, 1842. The validity of species remains to be demonstrated.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Tropical
Asia.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 5.8 cm SL mâle / non sexé; (Ref. 55745)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Distinguished by having the following characters: posterior nares with nasal barbels (shared with various Old-World catfish taxa); anus and urogenital openings widely separated (shared with a large subgroup of Bagridae); first lateral line ossicle with well-defined processes articulating with supracleithrum (shared with species of Olyra) (Ref. 55745).
Formerly wrongly attributed to the South-American fauna. This species clearly belongs to South Asia. It is possible that accidental mixing of specimens and or labels resulted in the assignment of this species to a Neotropical location (Ref. 55745).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Bockmann, F.A. and M.C.C. de Pinna, 2004. Heptapterus collettii Steindachner, 1881: a member of the Asian bagrid genus Olyra erroneously assigned to the Neotropical fauna (Siluriformes: Ostariophysi). Copeia 2004(3):665-675. (Ref. 55745)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.2 ±0.1 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |