Stomatorhinus

Stomatorhinus walkeri

Stomatorhinus is a genus of African freshwater fish from the family of mormyrids ( Mormyridae ). Most species of the genus occur in the Congo Basin, Gabon and Cameroon in more ago.

Features

Stomatorhinus species are five to eleven inches long, making it among the smallest Nilhechten. Your body is short or little elongated. The largest body height is between the pelvic fin base and the anal-fin base. The pelvic fins are closer to the pectoral fins than the anal fin. The dorsal fin is only slightly shorter than the anal fin, it has one or two simple fin rays in front of the branched fin rays, but this is only seen in the radiograph.

Genus is typical that the underlying front and rear nostrils close together stand on each side of the head near the mouth, are the nostrils of both sides of the head but far apart. For all other Nilhechten the nostrils are removed from the mouth opening. The teeth, 7 to 10 in the upper jaw and 8 to 10 in the lower jaw, are bicuspid. The lower jaw is not thickened.

Like all mormyrids are Stomatorhinus species for electric communication and electrical orientation capable. The carrying of electrical fields associated with the field of the brain is composed of two parts on each side of the brain, in contrast to the three separate areas for all other Nilhechten.

The fish are inconspicuous, usually colored monochrome greyish or brownish.

Species

The genus consists of 13 species:

• Stomatorhinus ater Pellegrin, 1924
• Stomatorhinus Corneti Boulenger, 1899
• Stomatorhinus fuliginosus Poll, 1941
• Stomatorhinus humilior Boulenger, 1899
• Stomatorhinus ivindoensis Sullivan & Hopkins, 2005
• Stomatorhinus kununguensis Poll, 1945
• Stomatorhinus microps Boulenger, 1898
• Stomatorhinus patrizii Vinciguerra, 1928
• Stomatorhinus pollination Matthes, 1964
• Stomatorhinus polylepis Boulenger, 1899
• Stomatorhinus puncticulatus Boulenger, 1899
• Stomatorhinus schoutedeni Poll, 1945
• Stomatorhinus walkeri ( Gunther, 1867)