Elephant Snout

Diagnosis: snout short, its length about 50% of the post-ocular length of the head (Ref. 28714), prominent, but not drawn out into a proboscis (Ref. 2915, 81274). Dorsal fin with 63-82 rays, beginning clearly in advance of pelvic fins; anal with 16-20 rays, its base comprised from 4.1 to 6.3 times in dorsal-fin base (Ref. 81274). Caudal peduncle relatively deep, its depth comprised 1.1-2.0 times in its length (Ref. 2915, 81274). 26-34 scales around caudal peduncle; ratio standard length/body depth: 4.2-6.2; upper jaw with 6-16, lower jaw with 10-22 teeth (Ref. 81274).Description: dorsal fin very long, more than twice the anal fin length (Ref. 28714).Coloration: ground color silvery, occasionally grading to a more or less dark grey; back darker, greyish-yellow, greenish or blackish; belly white, whitish-yellow or pale grey (Ref. 2915, 81274).

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.

Dorsal spines (total): 0; Dorsal soft rays (total): 63 - 82; Analspines: 0; Analsoft rays: 16 - 20

Possesses electroreceptors over the entire head and on the ventral and dorsal regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). A fractional spawner (Ref. 10605; 10606).

fisheries: commercial

Mormyrus hasselquistii es una especie de pez elefante eléctrico en la familia Mormyridae presente en varias cuencas hidrográficas de África, entre ellas los ríos Nilo o Comoe, y los lagos Ebrie y Aguien, entre otros.​ Es nativo de Burkina Faso, Camerún, la República Centroafricana, Chad, Costa de Marfil, Etiopía, Gambia, Ghana, Guinea, Guinea-Bisáu, Malí, Níger, Nigeria, Senegal, Sudán, Tanzania y Togo;​ puede alcanzar un tamaño aproximado de 50 cm.​

Respecto al estado de conservación, se puede indicar que de acuerdo a la IUCN, esta especie puede catalogarse en la categoría «Menos preocupante (LC)».​

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Mormyrus hasselquistii Mormyrus generoko animalia da. Arrainen barruko Mormyridae familian sailkatzen da.

哈氏長頜魚，為輻鰭魚綱骨舌魚目象鼻魚科的其中一種，分布於非洲尼羅河、查德湖、剛果河等流域，魚背部為深褐色或深灰色，腹部灰白色，背鰭軟條63-82枚，臀鰭軟條16-20枚，體長可達50公分，可作為食用魚。