Sipuncula

E394914

Sipuncula, commonly known as peanut worms, are a small phylum of unsegmented marine worms characterized by a retractable introvert and burrowing lifestyle in soft sediments or rock crevices.

All labels observed (2)

Label Occurrences
Sipuncula canonical 2
Echiura 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf phylum ⓘ
taxon ⓘ
bodySegmentation unsegmented ⓘ
circulatorySystem lacks closed circulatory system ⓘ
commonName peanut worms ⓘ
depthRange intertidal to deep sea ⓘ
distribution worldwide in marine environments ⓘ
domain Eukaryota ⓘ
ecologicalRole bioturbation of sediments ⓘ
nutrient recycling in benthic ecosystems ⓘ
economicImportance minor role as fish bait in some regions ⓘ
environment marine ⓘ
excretorySystem metanephridia ⓘ
feedingMode deposit feeder ⓘ
suspension feeder ⓘ
feedingStructure ciliated tentacular crown on introvert ⓘ
firstScientificDescriptionCentury 19th century ⓘ
gasExchange across body surface ⓘ
hasAnusPosition terminal ⓘ
hasBodyCavity coelomate ⓘ
hasBodyPlan bilaterally symmetrical ⓘ
hasBodyRegion introvert ⓘ
trunk ⓘ
hasBodyWall circular and longitudinal muscles ⓘ
hasCharacteristic burrowing lifestyle ⓘ
retractable introvert ⓘ
hasCuticle thin cuticle covering epidermis ⓘ
hasMouthPosition at tip of introvert ⓘ
hasNervousSystem cerebral ganglion ⓘ
ventral nerve cord ⓘ
hasNotableOrder Phascolosomatida ⓘ
Sipunculida ⓘ
hasSexes mostly dioecious ⓘ
hasTaxonomicHistory formerly grouped with Annelida by some authors ⓘ
hasTentacles introvert tentacles around mouth ⓘ
kingdom Animalia ⓘ
larvalStage pelagosphera larva ⓘ
trochophore larva ⓘ
recognizedAs distinct phylum in most modern classifications ⓘ
reproduction sexual reproduction ⓘ
skeletonType hydrostatic skeleton ⓘ
superphylum Lophotrochozoa ⓘ
typicalHabitat rock crevices ⓘ
soft sediments ⓘ
typicalSubstrate coral rubble ⓘ
mud ⓘ
sand ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lophotrochozoa → includesTaxon → Sipuncula ⓘ
Lophotrochozoa → includesTaxon → Echiura ⓘ
linked to: Sipuncula
Spiralia → includes → Sipuncula ⓘ