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Teleostei (teleosts) > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Boulengeromyrus: From George Albert Boulenger (1858-1937); he revised the works of Günther about Percoidei + Greek, myros = the male of a morey eel (Ref. 45335).
Eponymy: George Albert Boulenger (1858–1937) was a Belgian-British zoologist at the British Museum, London. [...] Louis-Philippe Knoepffler (1926–1984) was a French biologist, primarily a herpetologist and ichthyologist. [...] (Ref. 128868), visit book page.
More on authors: Taverne & Géry.

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

Freshwater; demersal. Tropical

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Africa: restricted to the Ivindo River basin and the Ntem River basin (Ref. 81635).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 41.3 cm SL male/unsexed; (Ref. 81635)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 23 - 24; Anal spines: 0; Anal soft rays: 28 - 31. Body deep and laterally compressed (Ref. 81635). Dorsal profile of the back straight, upper profile of head straight, pointing downward; ventral side of the head concave; snout elongate, its length 29 to 35 % of head length (Ref. 81635). Submental swelling reduced (Ref. 81635).

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

Main reference Upload your references | References | Coordinator | Collaborators

Hopkins, C.D., S. Lavoué and J.P. Sullivan, 2007. Mormyridae. p. 219-334. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81635)

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 |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01288 (0.00598 - 0.02775), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.3 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

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

Boulengeromyrus knoepffleri Taverne & Géry, 1968