Heterobranchia
E426732
Heterobranchia is a major and diverse clade of gastropod mollusks that includes many sea slugs, land snails, and related groups characterized by varied body forms and often reduced or internalized shells.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Heterobranchia canonical | 2 |
| Aplysiomorpha | 1 |
| Opisthobranchia (historical concept) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4244451 — 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: Heterobranchia Context triple: [Gastropoda, hasModernClade, Heterobranchia]
-
A.
Gastropoda
Gastropoda is a large and diverse class of mollusks that includes snails and slugs, characterized by a muscular foot and often a coiled shell.
-
B.
Caenogastropoda
Caenogastropoda is a major and highly diverse clade of marine, freshwater, and terrestrial snails and slugs within the class Gastropoda.
-
C.
Monoplacophora
Monoplacophora is a small, primitive class of deep-sea molluscs characterized by a single cap-like shell and serially repeated internal organs, offering key insights into molluscan and bilaterian evolution.
-
D.
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.
-
E.
Neritimorpha
Neritimorpha is a major clade of gastropod mollusks that includes nerites and their relatives, characterized by typically small, often globular shells and a long fossil record extending back to the Paleozoic.
- 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: Heterobranchia Target entity description: Heterobranchia is a major and diverse clade of gastropod mollusks that includes many sea slugs, land snails, and related groups characterized by varied body forms and often reduced or internalized shells.
-
A.
Gastropoda
Gastropoda is a large and diverse class of mollusks that includes snails and slugs, characterized by a muscular foot and often a coiled shell.
-
B.
Caenogastropoda
Caenogastropoda is a major and highly diverse clade of marine, freshwater, and terrestrial snails and slugs within the class Gastropoda.
-
C.
Monoplacophora
Monoplacophora is a small, primitive class of deep-sea molluscs characterized by a single cap-like shell and serially repeated internal organs, offering key insights into molluscan and bilaterian evolution.
-
D.
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.
-
E.
Neritimorpha
Neritimorpha is a major clade of gastropod mollusks that includes nerites and their relatives, characterized by typically small, often globular shells and a long fossil record extending back to the Paleozoic.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
clade
ⓘ
subclass of Gastropoda ⓘ taxon ⓘ |
| belongsTo | crown group Gastropoda ⓘ |
| characterizedBy |
detorsion or secondary symmetry in many taxa
ⓘ
frequent evolution of air-breathing structures ⓘ high morphological diversity ⓘ internalized shells in many groups ⓘ modifications of gill and mantle cavity ⓘ often reduced shells ⓘ |
| class | Gastropoda ⓘ |
| contains |
species with external shells
ⓘ
species with internal shells ⓘ species without shells ⓘ |
| contrastedWith |
Caenogastropoda
ⓘ
Patellogastropoda ⓘ Vetigastropoda ⓘ |
| distribution | worldwide ⓘ |
| etymology | from Greek "heteros" (different) and "branchia" (gills) ⓘ |
| habitat |
freshwater environments
ⓘ
marine environments ⓘ terrestrial environments ⓘ |
| hasSubgroup |
Acteonoidea
ⓘ
Aplysiomorpha ⓘ
linked to:
Heterobranchia
Nudipleura ⓘ Panpulmonata ⓘ Pyramidelloidea ⓘ Rissoelloidea ⓘ Sacoglossa ⓘ |
| includes |
freshwater gastropods
ⓘ
land slugs ⓘ land snails ⓘ many marine gastropods ⓘ nudibranchs ⓘ opisthobranchs ⓘ pulmonate gastropods ⓘ sea slugs ⓘ |
| isA |
group of gastropods
ⓘ
major lineage of gastropods ⓘ |
| kingdom | Animalia ⓘ |
| notableFor |
independent losses of shell in multiple lineages
ⓘ
repeated evolution of slug-like body forms ⓘ |
| phylum | Mollusca ⓘ |
| recognizedSince | 19th century ⓘ |
| supercladeOf |
Euthyneura
ⓘ
linked to:
Lophotrochozoa
Opisthobranchia (historical concept) ⓘ
linked to:
Heterobranchia
Pulmonata (historical concept) ⓘ
linked to:
Gastropoda
|
| supportedBy |
molecular phylogenetic evidence
ⓘ
morphological evidence ⓘ |
| taxonRank | clade ⓘ |
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: Heterobranchia Description of subject: Heterobranchia is a major and diverse clade of gastropod mollusks that includes many sea slugs, land snails, and related groups characterized by varied body forms and often reduced or internalized shells.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Heterobranchia
linked to: Heterobranchia