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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gymnotiformes canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10344166 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Gymnotiformes Context triple: [Ostariophysi, includes, Gymnotiformes]
-
A.
Polypteriformes
Polypteriformes is an ancient order of ray-finned fishes that includes bichirs and reedfish, known for their elongated bodies, ganoid scales, and ability to breathe air.
-
B.
Osteoglossiformes
Osteoglossiformes is an order of primitive freshwater bony fishes that includes species like arowanas and elephantfishes, known for features such as toothed tongues and specialized sensory systems.
-
C.
Mormyridae
Mormyridae is a family of African freshwater fishes, commonly known as elephantfish, notable for their elongated snouts and weak electric organ discharges used for navigation and communication.
-
D.
Osteoglossidae
Osteoglossidae is a family of primitive freshwater bony fishes, including arowanas and their relatives, known for their ancient lineage and distinctive jaw and tongue structures.
-
E.
Anguilliformes
Anguilliformes is an order of elongated, snake-like ray-finned fishes commonly known as eels, found in marine and freshwater environments worldwide.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Gymnotiformes Target entity description: 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.
-
A.
Polypteriformes
Polypteriformes is an ancient order of ray-finned fishes that includes bichirs and reedfish, known for their elongated bodies, ganoid scales, and ability to breathe air.
-
B.
Osteoglossiformes
Osteoglossiformes is an order of primitive freshwater bony fishes that includes species like arowanas and elephantfishes, known for features such as toothed tongues and specialized sensory systems.
-
C.
Mormyridae
Mormyridae is a family of African freshwater fishes, commonly known as elephantfish, notable for their elongated snouts and weak electric organ discharges used for navigation and communication.
-
D.
Osteoglossidae
Osteoglossidae is a family of primitive freshwater bony fishes, including arowanas and their relatives, known for their ancient lineage and distinctive jaw and tongue structures.
-
E.
Anguilliformes
Anguilliformes is an order of elongated, snake-like ray-finned fishes commonly known as eels, found in marine and freshwater environments worldwide.
- F. None of above. chosen
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 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Gymnotiformes Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.