Notopteridae
E250690
Notopteridae is a family of freshwater fishes commonly known as featherbacks or knifefishes, characterized by their elongated, laterally compressed bodies and continuous undulating anal fins.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Notopteridae canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2267281 — 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: Notopteridae Context triple: [Osteoglossiformes, includesFamily, Notopteridae]
-
A.
Hydrobatidae
Hydrobatidae is a family of small, oceanic seabirds known as storm petrels, which spend most of their lives at sea and are adapted to a pelagic lifestyle.
-
B.
Tetrarogidae
Tetrarogidae is a family of marine ray-finned fishes commonly known as waspfishes, characterized by their venomous spines and bottom-dwelling habits in Indo-Pacific coastal waters.
-
C.
Phaethontiformes
Phaethontiformes is an order of seabirds commonly known as tropicbirds, characterized by their long tail streamers and predominantly tropical oceanic habitats.
-
D.
Otidiformes
Otidiformes is an order of large, ground-dwelling birds known as bustards, found mainly in open grassland and semi-arid habitats across the Old World.
-
E.
Malapteruridae
Malapteruridae is a family of electric catfishes known for their ability to generate strong electric discharges, native to freshwater habitats in Africa.
- 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: Notopteridae Target entity description: Notopteridae is a family of freshwater fishes commonly known as featherbacks or knifefishes, characterized by their elongated, laterally compressed bodies and continuous undulating anal fins.
-
A.
Hydrobatidae
Hydrobatidae is a family of small, oceanic seabirds known as storm petrels, which spend most of their lives at sea and are adapted to a pelagic lifestyle.
-
B.
Tetrarogidae
Tetrarogidae is a family of marine ray-finned fishes commonly known as waspfishes, characterized by their venomous spines and bottom-dwelling habits in Indo-Pacific coastal waters.
-
C.
Phaethontiformes
Phaethontiformes is an order of seabirds commonly known as tropicbirds, characterized by their long tail streamers and predominantly tropical oceanic habitats.
-
D.
Otidiformes
Otidiformes is an order of large, ground-dwelling birds known as bustards, found mainly in open grassland and semi-arid habitats across the Old World.
-
E.
Malapteruridae
Malapteruridae is a family of electric catfishes known for their ability to generate strong electric discharges, native to freshwater habitats in Africa.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fish family
ⓘ
taxon ⓘ |
| activityPattern | mostly nocturnal ⓘ |
| bodyShape |
elongated
ⓘ
laterally compressed ⓘ |
| class | Actinopterygii ⓘ |
| commercialUse |
aquarium trade
ⓘ
food fish ⓘ |
| commonName |
featherbacks
ⓘ
knifefishes ⓘ |
| containsGenus |
Chitala
ⓘ
Notopterus ⓘ Papyrocranus ⓘ Kryptopterus ⓘ
surface form:
Xenomystus
|
| diet | carnivorous ⓘ |
| distribution |
Africa
ⓘ
Asia ⓘ |
| ecologicalNiche | inland waters ⓘ |
| finConfiguration |
long anal fin extending along ventral margin
ⓘ
reduced or absent caudal fin ⓘ |
| finMovement | undulating anal fin ⓘ |
| finType | continuous anal fin ⓘ |
| firstAppearance | Cenozoic ⓘ |
| habitat | freshwater ⓘ |
| hasSpecies |
Chitala chitala
ⓘ
Chitala ⓘ
surface form:
Chitala ornata
Notopterus ⓘ
surface form:
Notopterus notopterus
Papyrocranus ⓘ
surface form:
Papyrocranus afer
Gnathonemus petersii ⓘ
surface form:
Xenomystus nigri
|
| includesAirBreathingSpecies | true ⓘ |
| kingdom | Animalia ⓘ |
| locomotion | anal fin undulation ⓘ |
| nativeTo |
Congo River
ⓘ
surface form:
Congo River basin
Ganges Basin ⓘ
surface form:
Ganges River basin
Mekong River ⓘ
surface form:
Mekong River basin
Nile Basin ⓘ
surface form:
Nile River basin
|
| notableMorphology | knife-like body outline ⓘ |
| order | Osteoglossiformes ⓘ |
| phylum | Chordata ⓘ |
| reproduction | oviparous ⓘ |
| sensoryAdaptation | well-developed lateral line ⓘ |
| skeletonType | bony fish ⓘ |
| swimBladder | well developed ⓘ |
| taxonRank | family ⓘ |
| usesSwimBladderFor |
respiration assistance
ⓘ
sound production ⓘ |
| waterType | tropical freshwater ⓘ |
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: Notopteridae Description of subject: Notopteridae is a family of freshwater fishes commonly known as featherbacks or knifefishes, characterized by their elongated, laterally compressed bodies and continuous undulating anal fins.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.