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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Hippopotamyrus: Greek, ippos = horse + Greek,potamos = river + greek, myros = the male of morey eel (Ref. 45335).
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
; acqua dolce demersale. Tropical; 22°C - 24°C (Ref. 12468)
Africa: in the large Sahelo-Sudanese basins Nile, Niger, Benue, Chad and Volta (Ref. 2915, 28714, 81274); also Mono River in Togo, Sassandra River in Ivory Coast and in Ghana, Burkina Faso, NIgeria and Cameroon (Ref. 3203, 2915, 81274).
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 30.5 cm SL maschio/sesso non determinato; (Ref. 3203); peso massimo pubblicato: 100.00 g (Ref. 3799)
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 29 - 39; Spine anali: 0; Raggi anali molli: 30 - 36. Concave back profile. Dorsal and anal fins on same level. Body height 3.2-4.8 x SL. Chin less developed than H. paugyi. Caudal peduncle height 3.2-4.9 x of its length. Nasal openings forming 45° angle with body axis.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00662 - 0.02084), b=2.86 (2.71 - 3.01), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
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