The Order Gymnotiformes is further organized into finer groupings including:
- Family (6): Apteronotidae · Electrophoridae · Gymnotidae · Hypopomidae · Rhamphichthyidae · Sternopygidae
- Species: ZipcodeZoo has pages for 269 species and subspecies in the Order Gymnotiformes.
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes. These fish can be found in the freshwater of Panama and South America. [more]
The electric eel (Electrophorus electricus), is an electric fish, and the only species of the genus Electrophorus. It is capable of generating powerful electric shocks, of up to six hundred volts, which it uses for both hunting and self-defense. It is an apex predator in its South American range. Despite its name it is not an eel but rather a knifefish. [more]
The naked-back knifefishes are a family (Gymnotidae) of knifefishes (knivefish) that are found only in fresh waters of Central America and South America. All have organs adapted to the exploitation of bioelectricity. The family has 33 valid species in two genera. There are a number of undescribed species known in museum collections. [more]
Hypopomidae is a family of fishes in the order Gymnotiformes known as the bluntnose knifefish. They may also be called grass or leaf knifefishes. These fish are not often eaten, of little commercial importances, are rarely kept as aquarium fish, and are poorly studied; however, species in this family may constitute a significant fraction of the biomass to the areas they inhabit. [more]
Sand knifefishes are freshwater fishes of the Rhamphichthyidae family, from South America. There are only 3 genera and 16 species in this group. [more]
Glass knifefishes are fishes in the family Sternopygidae in the order Gymnotiformes. Species are also known as rattail knifefishes. [more]
At least 44 species and subspecies belong to the Family Sternopygidae.
More info about the Family Sternopygidae may be found here.
- The text on this page is licensed under the GNU Free Documentation License.
- Photographs on this page are copyrighted by individual photographers, and individual copyrights apply.
- The GMapImageCutter is used under license from the UCL Centre for Advanced Spatial Analysis.
- The technology underlying this page, including the Image Browser and controls behind Keep Exploring, is owned by the BayScience Foundation. All rights are reserved.