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Teleostei (teleosts) > Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes)
Etymology: Distocyclus: Greek, distokylos = that has two circles (Ref. 45335).
More on authors: Eigenmann & Allen.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic, usually 4 - 28 m (Ref. 96854). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Amazon, Essequibo and Orinoco river basin.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 39524)

Short description Morphology | Morphometrics

Anal soft rays: 209 - 273. Distocyclus conirostris is distinguished by the combination of the following characters: conical snout; small nasal capsule with the internarial distance equivalent to the diameter of the posterior nostril; endopterygoid without teeth; single tooth row limited to the anterior portion of the dentary; eye covered by skin; teeth completely attached to the ventral surface of the premaxilla; flat surface to the upper lip; anterior margin of the premaxilla in contact with the posterior margin of the upper lip; terminal mouth; one to six teeth on the dentary; absence of teeth associated with the oral valve; half-moon shaped branchiostegal rays; body without eight dark, vertical bands; anal fin with 209-273 rays; scales present on the anterior portion of the dorsal region of the body; tiny, fleshy gill rakers; presence of branched anal-fin rays; 13 or 14 precaudal vertebrae; and scapular foramen present (Ref. 96854).

Usually occurs in floodplain and main river channels at depths of 3.8-28.3 m (Ref. 96854).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators

Dutra, G.M., C.D. de Santana, R.P. Vari and W.B. Wosiacki, 2014. The south American electric glass knifefish genus Distocyclus (Gymnotiformes: Sternopygidae): redefinition and revision. Copeia 2014(2):345-354. (Ref. 96854)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 March 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00363 (0.00172 - 0.00768), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (40 of 100).

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Distocyclus conirostris (Eigenmann & Allen, 1942)