Clitellata
E93459
Clitellata is a class of segmented worms that includes earthworms and leeches, characterized by having a clitellum used in reproduction.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Clitellata canonical | 3 |
| Oligochaeta | 2 |
| Acanthobdellida | 1 |
| Arhynchobdellida | 1 |
| Eisenia fetida | 1 |
| Hirudinea | 1 |
| Lumbricus terrestris | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T784245 — 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: Clitellata Context triple: [Annelida, includesClass, Clitellata]
-
A.
Annelida
Annelida is a phylum of segmented worms that includes earthworms, leeches, and many marine worms characterized by their ring-like body segments.
-
B.
Nematoda
Nematoda is a diverse phylum of elongated, unsegmented roundworms found in nearly every habitat on Earth, many of which are important parasites of plants, animals, and humans.
-
C.
Platyhelminthes
Platyhelminthes is a phylum of simple, soft-bodied, bilaterally symmetrical invertebrates commonly known as flatworms, which includes both free-living and parasitic species.
-
D.
Ecdysozoa
Ecdysozoa is a major animal clade of molting invertebrates that includes arthropods, nematodes, and several related phyla.
-
E.
Mollusca
Mollusca is a large and diverse phylum of invertebrate animals that includes snails, clams, squids, and octopuses, typically characterized by soft bodies often protected by a hard shell.
- 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: Clitellata Target entity description: Clitellata is a class of segmented worms that includes earthworms and leeches, characterized by having a clitellum used in reproduction.
-
A.
Annelida
Annelida is a phylum of segmented worms that includes earthworms, leeches, and many marine worms characterized by their ring-like body segments.
-
B.
Nematoda
Nematoda is a diverse phylum of elongated, unsegmented roundworms found in nearly every habitat on Earth, many of which are important parasites of plants, animals, and humans.
-
C.
Platyhelminthes
Platyhelminthes is a phylum of simple, soft-bodied, bilaterally symmetrical invertebrates commonly known as flatworms, which includes both free-living and parasitic species.
-
D.
Ecdysozoa
Ecdysozoa is a major animal clade of molting invertebrates that includes arthropods, nematodes, and several related phyla.
-
E.
Mollusca
Mollusca is a large and diverse phylum of invertebrate animals that includes snails, clams, squids, and octopuses, typically characterized by soft bodies often protected by a hard shell.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
annelid class
ⓘ
class ⓘ taxon ⓘ |
| bodyCavity | coelomate ⓘ |
| bodyPlan | bilaterally symmetrical ⓘ |
| circulatorySystem | closed circulatory system ⓘ |
| clitellumFunction | secretes cocoon for eggs ⓘ |
| clitellumLocation | specialized glandular segments ⓘ |
| development | direct development ⓘ |
| ecologicalRole |
nutrient cycling
ⓘ
organic matter decomposition ⓘ soil aeration ⓘ |
| excretorySystem | metanephridia ⓘ |
| feedingType |
detritivore
ⓘ
parasite ⓘ predator ⓘ |
| fertilization | external fertilization in cocoon ⓘ |
| firstDescribedBy | Carl Gustav Carus ⓘ |
| firstDescribedInYear | 1835 ⓘ |
| gasExchange | through body surface ⓘ |
| habitat |
freshwater environments
ⓘ
marine environments ⓘ terrestrial environments ⓘ |
| hasCharacteristic |
direct development without trochophore larva
ⓘ
few or no chaetae in many groups ⓘ hermaphroditic reproduction in most species ⓘ presence of clitellum ⓘ reduced or absent parapodia ⓘ segmented body ⓘ |
| includes |
Acanthobdellida
ⓘ
linked to:
Clitellata
Branchiobdellida ⓘ Hirudinea ⓘ Oligochaeta ⓘ
linked to:
Annelida
earthworm ⓘ leech ⓘ |
| kingdom | Animalia ⓘ |
| larvalStage | no free-living larval stage ⓘ |
| nervousSystem | ventral nerve cord ⓘ |
| notableMember |
Eisenia fetida
ⓘ
linked to:
Clitellata
Hirudo medicinalis ⓘ Lumbricus terrestris ⓘ
linked to:
Clitellata
|
| phylum | Annelida ⓘ |
| reproduction | sexual reproduction ⓘ |
| reproductiveStructure | clitellum ⓘ |
| segmentationType | metameric segmentation ⓘ |
| usedIn |
biomedical research
ⓘ
fishing bait ⓘ |
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: Clitellata Description of subject: Clitellata is a class of segmented worms that includes earthworms and leeches, characterized by having a clitellum used in reproduction.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Clitellata
linked to: Clitellata
linked to: Clitellata
linked to: Clitellata
linked to: Clitellata
linked to: Clitellata
linked to: Clitellata