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Teleostei (teleosts) > Osteoglossiformes (Bony tongues) > Notopteridae (Featherbacks or knifefishes) > Xenomystinae
Etymology: Papyrocranus: Greek, papyros = paper rush + Greek, kranion = skull (Ref. 45335).
More on authors: Nichols & LaMonte.

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

Freshwater; demersal. Tropical

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

Africa: Congo basin: Cuvette Centrale, parts of the Ubangi and probably also in the lower Congo basin (Ref. 7431). Also reported from the Kouilou-Niari in Ref. 7431, in contrast to statements in the text. Absent from the upper Congo above Kisangani, Camerounian parts of the Congo basin, and from the Chiloango, Ogooué or Chad basins (Ref. 7431).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 29.2 cm SL male/unsexed; (Ref. 124477)

Short description Identification keys | Morphology | Morphometrics

Anal soft rays: 104 - 118. Caudal vertebrae 52-58.

Obligate air-breathing (Ref. 126274)

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

Main reference Upload your references | References | Coordinator | Collaborators

Roberts, T.R., 1992. Systematic revision of the old world freshwater fish family Notopteridae. Ichthyol. Explor. Freshwat. 2(4):361-383. (Ref. 7431)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7510 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00447 (0.00174 - 0.01147), b=3.08 (2.86 - 3.30), 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

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (26 of 100).

Papyrocranus congoensis (Nichols & La Monte, 1932)