Assertion: electric eel's family | /r/Synonym | bluntnose knifefishes
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: In one species of Brachyhypopomus (a genus of South American river fish belonging to the family Hypopomidae, commonly known as bluntnose knifefishes), the electric discharge pattern is similar to the low voltage electrolocative discharge of the electric eel.