Actinopterygii (ray-finned fishes) >
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Hippopotamyrus: Greek, ippos = horse + Greek,potamos = river + greek, myros = the male of morey eel (Ref. 45335).
Environment / Climate / Range
Ecology
Freshwater; demersal; pH range: 6.8 - 7.2; dH range: ? - 8. Tropical; 20°C - 24°C (Ref. 13614), preferred ?
Africa: upper Niger, Bénoué River and Congo River basin (Ref. 3203), where it is widespread. Also in the basins of the Volta, Ouémé and Ogun.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 3799); max. published weight: 190.00 g (Ref. 3799)
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 30-37;
Anal
spines: 0;
Anal
soft rays: 22 - 27. Dorsal fin origin before anal fin origin; length of dorsal base to anal base ratio 1.2-1.6. Back convex and hull shaped. LS/Depth ratio 2.9-3.8. Height of caudal peduncle 2.9-4.4 x of its length. The form of the back and the position of the dorsal and anal fins clearly distinguishes this species from others in the same geographic zone.
Possesses electroreceptors over the entire head, on the ventral region (except abdominal area) and the dorsal region of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Found in large rivers. Edible fish (Ref. 11970).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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