BIOTIC Species Information for Nephasoma spp.
Researched byDr Paul Somerfield & Prof. Richard Warwick Data supplied byPML
Refereed byThis information is not refereed
Taxonomy
Scientific nameNephasoma spp. Common nameA sipunculid
MCS CodeN20 Recent Synonyms
PhylumSipuncula Subphylum
Superclass ClassSipunculidea
Subclass OrderGolfingiiformes
Suborder FamilyGolfingiidae
GenusNephasoma Species
Subspecies   
Additional Information
Taxonomy References Howson & Picton, 1997,
General Biology
Growth formVermiform segmented
 Feeding methodSub-surface deposit feeder
Mobility/MovementBurrower
 Environmental position
Typical food typesDetritus HabitFree living
Bioturbator FlexibilityLow (10-45 degrees)
FragilityFragile SizeSmall(1-2cm)
Height0 Growth RateNot researched
Adult dispersal potentialNot researched DependencyIndependent
SociabilitySolitary
Toxic/Poisonous?No
General Biology Additional Information
Biology References Fish & Fish, 1996, Hayward & Ryland, 1995b,
Distribution and Habitat
Distribution in Britain & IrelandNot researched
Global distributionNot researched
Biogeographic rangeNot researched Depth rangeNot researched
Migratory   
Distribution Additional Information
Substratum preferencesMud
 Physiographic preferences
Biological zone Wave exposure
Tidal stream strength/Water flow Salinity
Habitat Preferences Additional Information
Distribution References Fish & Fish, 1996, Hayward & Ryland, 1995b, Foster-Smith, 2000,
Reproduction/Life History
Reproductive type Developmental mechanismDirect Development
Reproductive SeasonNovember to January Reproductive LocationAs adult
Reproductive frequency Regeneration potential No
Life spanInsufficient information Age at reproductive maturityInsufficient information
Generation timeNot researched FecundityInsufficient information
Egg/propagule size215-280 µm Fertilization typeExternal
Larvae/Juveniles
Larval/Juvenile dispersal potentialNot researched Larval settlement periodNot relevant
Duration of larval stageNot relevant   
Reproduction Preferences Additional Information
Reproduction References Fish & Fish, 1996,
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