Phractocephalus
E808436
Phractocephalus is a genus of large South American freshwater catfish best known for the popular aquarium and game species redtail catfish (Phractocephalus hemioliopterus).
All labels observed (2)
| Label | Occurrences |
|---|---|
| Phractocephalus canonical | 1 |
| Phractocephalus hemioliopterus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9541538 — 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: Phractocephalus Context triple: [Pimelodidae, includes, Phractocephalus]
-
A.
Brachyplatystoma
Brachyplatystoma is a genus of large migratory catfish native to South American river systems, particularly the Amazon and Orinoco basins.
-
B.
Pseudoplatystoma
Pseudoplatystoma is a genus of large, predatory South American catfish known for their distinctive striped or spotted patterns and importance in commercial and sport fisheries.
-
C.
Lepidocephalichthys
Lepidocephalichthys is a genus of small freshwater loaches native mainly to South and Southeast Asia, known for their elongated bodies and bottom-dwelling habits in slow-moving or standing waters.
-
D.
Xiphophorus
Xiphophorus is a genus of small freshwater fish, including popular aquarium species like platies and swordtails, known for their vivid colors and importance in genetic and cancer research.
-
E.
Poecilia
Poecilia is a genus of small freshwater fish that includes popular aquarium species such as guppies and mollies.
- 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: Phractocephalus Target entity description: Phractocephalus is a genus of large South American freshwater catfish best known for the popular aquarium and game species redtail catfish (Phractocephalus hemioliopterus).
-
A.
Brachyplatystoma
Brachyplatystoma is a genus of large migratory catfish native to South American river systems, particularly the Amazon and Orinoco basins.
-
B.
Pseudoplatystoma
Pseudoplatystoma is a genus of large, predatory South American catfish known for their distinctive striped or spotted patterns and importance in commercial and sport fisheries.
-
C.
Lepidocephalichthys
Lepidocephalichthys is a genus of small freshwater loaches native mainly to South and Southeast Asia, known for their elongated bodies and bottom-dwelling habits in slow-moving or standing waters.
-
D.
Xiphophorus
Xiphophorus is a genus of small freshwater fish, including popular aquarium species like platies and swordtails, known for their vivid colors and importance in genetic and cancer research.
-
E.
Poecilia
Poecilia is a genus of small freshwater fish that includes popular aquarium species such as guppies and mollies.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
catfish
ⓘ
fish species ⓘ genus ⓘ taxon ⓘ |
| aquariumTrade |
yes
ⓘ
yes ⓘ |
| class | Actinopterygii ⓘ |
| commonName |
Phractocephalus
NERFINISHED
ⓘ
redtail catfish ⓘ |
| containsTaxon | Phractocephalus hemioliopterus ⓘ |
| describedAs | large South American freshwater catfish genus ⓘ |
| distribution |
Amazon Basin
NERFINISHED
ⓘ
Essequibo Basin NERFINISHED ⓘ Orinoco Basin NERFINISHED ⓘ |
| ecologicalRole | large predatory fish ⓘ |
| family |
Pimelodidae
NERFINISHED
ⓘ
Pimelodidae NERFINISHED ⓘ |
| gameFish |
yes
ⓘ
yes ⓘ |
| genus | Phractocephalus NERFINISHED ⓘ |
| habitat |
freshwater
ⓘ
freshwater ⓘ |
| isA | catfish genus ⓘ |
| kingdom | Animalia ⓘ |
| maximumSize | large ⓘ |
| nativeTo |
South America
ⓘ
South America ⓘ |
| notableFor | including the redtail catfish ⓘ |
| order |
Siluriformes
NERFINISHED
ⓘ
Siluriformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| taxonRank |
genus
ⓘ
species ⓘ |
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: Phractocephalus Description of subject: Phractocephalus is a genus of large South American freshwater catfish best known for the popular aquarium and game species redtail catfish (Phractocephalus hemioliopterus).
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Phractocephalus hemioliopterus