Brienomyrus brachyistius (Gill, 1862)

Fermon, Yves, Bailly, Nicolas, Cardiec, Floriane, Causse, Romain, Chartrain, Emmanuel, Chirio, Laurent, Bruyne, Godefroy De, Deynat, Pascal, Hopkins, Carl D., Lamboj, Anton, Mennesson, Marion I., Beh, Jean-Hervé Mve, Paugy, Didier, Sidlauskas, Brian, Sullivan, John P., Weghe, Jean-Pierre Van De, Vigliotta, Thomas R. & Zee, Jouke Van Der, 2022, An annotated checklist of the fishes of Gabon, Cybium 46 (2), pp. 2-3 : 122

Brienomyrus brachyistius (Gill, 1862)

Marcusenius brachistius Gill, 1862 [Synonym: senior, original�

Mormyrus microcephalus Günther, 1867 [Synonym: junior, original� Brienomyrus microcephalus (Günther, 1867) [Synonym: junior, new� Type-locality: Brienomyrus microcephalus – “Ogowe River, Gabon ”. Holotype: BMNH 1867.5.22.6.

Occurrence: native

Maximum length: 20 cm TL

Water type: brackish, freshwater

Environment: benthopelagic

Depth range: _

Migration: unknown

IUCN status: LC – Least concern (2020)

Source: preserved

Distribution and remarks: known from Gambia to Democratic Republic of the Congo. May also be present in the upper reaches of Senegal (Niokolo-Koba National Park). Not studied but EOD of Günther’s microcephalus -like specimens collected in the Nyanga River had a very different EOD from that of the more common B. brachyistius from Ogowe main channel. Neither is present in the Ivindo Basin (Hopkins, pers. com.).