Gymnotiformes
E858411
Gymnotiformes is an order of South and Central American electric fishes, commonly known as knifefishes, characterized by elongated bodies and the ability to generate electric fields for navigation and communication.
Statements (67)
| Predicate | Object |
|---|---|
| instanceOf |
order of fishes
ⓘ
taxon ⓘ |
| activityPattern | primarily nocturnal ⓘ |
| class | Actinopterygii ⓘ |
| commonName |
South American knifefishes
ⓘ
knifefishes ⓘ |
| diet |
insect larvae
ⓘ
invertebrates ⓘ small fishes ⓘ |
| electricOrganDischargeType |
pulse-type in some species
ⓘ
wave-type in some species ⓘ |
| electricOrganLocation | tail region ⓘ |
| electrogenesisUsedFor |
electrocommunication
ⓘ
electrolocation ⓘ navigation ⓘ orientation in turbid waters ⓘ prey detection ⓘ |
| foundIn |
Amazon Basin
NERFINISHED
ⓘ
Orinoco Basin NERFINISHED ⓘ Paraná–Paraguay Basin NERFINISHED ⓘ coastal drainages of northern South America ⓘ some Central American river systems ⓘ |
| habitat |
floodplains
ⓘ
freshwater ⓘ oxbow lakes ⓘ rivers ⓘ streams ⓘ swamps ⓘ |
| hasCharacteristic |
anal fin extremely long
ⓘ
caudal fin reduced or absent ⓘ continuous undulatory swimming with anal fin ⓘ dorsal fin absent ⓘ electric fishes ⓘ electric organ present ⓘ elongated body ⓘ laterally compressed body in many species ⓘ mouth often superior or terminal ⓘ no adipose fin ⓘ no pelvic fins ⓘ no true dorsal fin ⓘ nocturnal activity in many species ⓘ scales absent or very reduced ⓘ some species strongly electric ⓘ swimbladder reduced ⓘ weakly electric in most species ⓘ |
| includesFamily |
Apteronotidae
NERFINISHED
ⓘ
Eigenmanniidae NERFINISHED ⓘ Gymnotidae NERFINISHED ⓘ Hypopomidae NERFINISHED ⓘ Rhamphichthyidae NERFINISHED ⓘ Sternopygidae NERFINISHED ⓘ |
| infraclass | Teleostei NERFINISHED ⓘ |
| kingdom | Animalia ⓘ |
| locomotion | backward and forward swimming using anal fin undulations ⓘ |
| nativeRange |
Central America
NERFINISHED
ⓘ
South America NERFINISHED ⓘ |
| notableSpecies |
Apteronotus albifrons
NERFINISHED
ⓘ
Electrophorus electricus NERFINISHED ⓘ Gymnotus carapo NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| reproduction | egg-laying ⓘ |
| scientificStudyField |
electrophysiology
ⓘ
neuroethology ⓘ sensory biology ⓘ |
| sensoryAdaptation |
specialized electroreceptors
ⓘ
well-developed lateral line system ⓘ |
| superorder | Ostariophysi NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.