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Gymnotiformes: Information from Answers.com (2562 words) |
 | The caudal fin is replaced by the caudal appendage except in the apteronotids, which possess a reduced caudal fin that is interpreted by some authors as being derived from the caudal appendage and not representing an intermediate state in the loss of a caudal fin. |
| Gymnotiform fishes occur in all Neotropical river systems, from the Rio Salado in the pampas of Argentina to the Rio San Nicolas of Chiapas in Mexico. |
| The importance of gymnotiforms as part of the food chain is demonstrated in the case of top predators of the pimelodid family, the catfishes; fifteen commercially important pimelodid species of the Rio Apure in Venezuela include gymnotiforms in their diet. |
| Gymnotiformes - Wikipedia, the free encyclopedia (210 words) |
| The Gymnotiformes is a lineage of ostariophysan teleost electric fishes. |
| The electric discharge is continuous, being generated day and night throughout the entire life of the individual. |
| Gymnotiform fishes inhabit freshwater rivers and streams throughout the humid Neotropics, ranging from Guatemala to Northern Argentina. |
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