BIOTIC Species Information for Sagartiogeton undatus
Researched byEmily Wilson Data supplied byMarLIN
Refereed byThis information is not refereed.
Scientific nameSagartiogeton undatus Common nameA sea anemone
MCS CodeD722 Recent SynonymsNone

PhylumCnidaria Subphylum
SuperclassAnthozoa ClassHexacorallia
Subclass OrderActinaria
SuborderNynantheae FamilySagartiidae
GenusSagartiogeton Speciesundatus

Additional Information
Taxonomy References Howson & Picton, 1997, Hayward & Ryland, 1995b, Hayward et al., 1996, Manuel, 1988,
General Biology
Growth formCylindrical
Feeding methodPassive suspension feeder
Mobility/MovementTemporary attachment
Environmental positionEpibenthic
Typical food typesCarrion, small invertebrates HabitAttached
BioturbatorNot relevant FlexibilityHigh (>45 degrees)
FragilityIntermediate SizeMedium(11-20 cm)
HeightInsufficient information Growth RateInsufficient information
Adult dispersal potentialVery limited (<1m) DependencyIndependent
General Biology Additional InformationThis species becomes very flat in contraction, only a few millimetres thick. It is rarely present in abundance in any one locality. Sagartiogeton undatus is often found in the company of Sagartia troglodytes or Cereus pedunculatus, where these occur buried, and in the past has been confused with both these species although easily distinguished from them by its lack of suckers. Philip Henry Gosse christened this species the Snakelocks, but this name proved popular with the more common species Anemonia viridis.
Biology References Hayward & Ryland, 1995b, Hayward et al., 1996,
Distribution and Habitat
Distribution in Britain & IrelandPresent on all British and Irish coats.
Global distributionScandinavia to the Mediterranean and throughout western Europe (Manuel, 1988; Hayward & Ryland, 1995b).
Biogeographic rangeNot researched Depth rangeLower shore to >100 m (Manuel, 1988).
Distribution Additional Information

Substratum preferencesBedrock
Large to very large boulders
Small boulders
Gravel / shingle
Coarse clean sand
Fine clean sand
Crevices / fissures
Physiographic preferences
Biological zoneLower Eulittoral
Sublittoral Fringe
Upper Infralittoral
Wave exposure
Tidal stream strength/Water flow Salinity
Habitat Preferences Additional InformationTypically buried in sand or gravel attached to a stone or shell or in crevices in rocks (Manuel, 1988; Hayward & Ryland, 1995b).
Distribution References Hayward & Ryland, 1995b, Hayward et al., 1996, Manuel, 1988,
Reproduction/Life History
Reproductive type Developmental mechanism
Reproductive Season Reproductive Location
Reproductive frequency Regeneration potential No
Life spanInsufficient information Age at reproductive maturityInsufficient information
Generation timeInsufficient information Fecundity
Egg/propagule size Fertilization type
Larval/Juvenile dispersal potentialInsufficient information Larval settlement period
Duration of larval stageInsufficient information   
Reproduction Preferences Additional InformationThis species is not thought to reproduce asexually and viviparity has not been reported (Manuel, 1988).
Reproduction References Manuel, 1988,
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