Gnathonemus petersii
E876520
Gnathonemus petersii, commonly known as the elephantnose fish, is a freshwater African fish species notable for its elongated snout and use of weak electric fields for navigation and communication.
All labels observed (5)
| Label | Occurrences |
|---|---|
| African knifefish | 1 |
| African knifefishes | 1 |
| Gnathonemus petersii canonical | 1 |
| Peters’s elephantnose fish (Gnathonemus petersii) | 1 |
| Xenomystus nigri | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10639848 — 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: Gnathonemus petersii Context triple: [Mormyridae, contains, Gnathonemus petersii]
-
A.
Clarias
Clarias is a genus of airbreathing catfishes commonly known as walking catfish, found in freshwater habitats across Africa and Asia.
-
B.
Leptodoras
Leptodoras is a genus of thorny catfishes native to South American freshwater habitats, known for their bony plates and bottom-dwelling behavior.
-
C.
Lampetra
Lampetra is a genus of jawless, eel-like lampreys found in freshwater and coastal marine environments of the Northern Hemisphere.
-
D.
Cyprinodon
Cyprinodon is a genus of small, hardy pupfishes known for inhabiting extreme and isolated aquatic environments, often used as models in studies of rapid evolution and adaptation.
-
E.
Misgurnus anguillicaudatus
Misgurnus anguillicaudatus, commonly known as the oriental weather loach, is a small, eel-like freshwater fish native to East Asia and popular in aquaculture and the aquarium trade.
- 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: Gnathonemus petersii Target entity description: Gnathonemus petersii, commonly known as the elephantnose fish, is a freshwater African fish species notable for its elongated snout and use of weak electric fields for navigation and communication.
-
A.
Clarias
Clarias is a genus of airbreathing catfishes commonly known as walking catfish, found in freshwater habitats across Africa and Asia.
-
B.
Leptodoras
Leptodoras is a genus of thorny catfishes native to South American freshwater habitats, known for their bony plates and bottom-dwelling behavior.
-
C.
Lampetra
Lampetra is a genus of jawless, eel-like lampreys found in freshwater and coastal marine environments of the Northern Hemisphere.
-
D.
Cyprinodon
Cyprinodon is a genus of small, hardy pupfishes known for inhabiting extreme and isolated aquatic environments, often used as models in studies of rapid evolution and adaptation.
-
E.
Misgurnus anguillicaudatus
Misgurnus anguillicaudatus, commonly known as the oriental weather loach, is a small, eel-like freshwater fish native to East Asia and popular in aquaculture and the aquarium trade.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fish species
ⓘ
weakly electric fish ⓘ |
| activityPattern | nocturnal ⓘ |
| behavior |
shy
ⓘ
territorial toward conspecifics ⓘ |
| bodyShape | elongated body ⓘ |
| class | Actinopterygii ⓘ |
| coloration |
dark brown to black body
ⓘ
pale vertical bands ⓘ |
| commonName |
elephant nose fish
ⓘ
elephantnose fish ⓘ |
| describedBy | Albert Günther ⓘ |
| diet |
insect larvae
ⓘ
invertebrates ⓘ worms ⓘ |
| distinctiveFeature |
elongated snout
ⓘ
trunk-like chin appendage ⓘ |
| electricDischargeType | wave-type electric organ discharge ⓘ |
| electricOrganType | weak electric organ ⓘ |
| family | Mormyridae ⓘ |
| genus | Gnathonemus ⓘ |
| geographicDistribution |
Central Africa
ⓘ
West Africa ⓘ |
| habitat |
floodplains
ⓘ
freshwater ⓘ slow-moving rivers ⓘ |
| hasOrgan |
electric organ in caudal peduncle
ⓘ
enlarged cerebellum-like brain region ⓘ |
| keptAs | aquarium fish ⓘ |
| kingdom | Animalia ⓘ |
| maximumLength | about 35 cm ⓘ |
| namedAfter | Wilhelm Peters ⓘ |
| nativeTo |
Africa
ⓘ
Niger River basin ⓘ
linked to:
Niger River
Ogooué River basin ⓘ
linked to:
Ogooué basin area
|
| order | Osteoglossiformes ⓘ |
| phylum | Chordata ⓘ |
| reproduction | egg-laying ⓘ |
| sensorySystem |
electroreception
ⓘ
lateral line system ⓘ |
| taxonRank | species ⓘ |
| typicalLength | 20–25 cm ⓘ |
| usesElectricFieldsFor |
communication
ⓘ
navigation ⓘ |
| waterTypePreference |
slightly acidic water
ⓘ
soft water ⓘ |
| yearDescribed | 1862 ⓘ |
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: Gnathonemus petersii Description of subject: Gnathonemus petersii, commonly known as the elephantnose fish, is a freshwater African fish species notable for its elongated snout and use of weak electric fields for navigation and communication.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Gnathonemus petersii
linked to: Gnathonemus petersii
linked to: Gnathonemus petersii
linked to: Gnathonemus petersii