Sagartiogeton undatus

Researched By	Emily Wilson	Data Supplied By	MarLIN
Refereed by	This information is not refereed.
Taxonomy
Scientific name	Sagartiogeton undatus	Common name	A sea anemone
MCS Code	D722	Recent Synonyms	None
Phylum	Cnidaria	Subphylum
Superclass	Anthozoa	Class	Hexacorallia
Subclass		Order	Actinaria
Suborder	Nynantheae	Family	Sagartiidae
Genus	Sagartiogeton	Species	undatus
Subspecies
Additional Information
Taxonomy References	Howson & Picton, 1997, Hayward & Ryland, 1995b, Hayward et al., 1996, Manuel, 1988
General Biology
Growth form	Cylindrical, Radial	Feeding method	Passive suspension feeder
Mobility/Movement	Temporary attachment, Burrower	Environmental position	Epibenthic, Epifaunal
Typical food types	Carrion, small invertebrates	Habit	Attached
Bioturbator	Not relevant	Flexibility	High (>45 degrees)
Fragility	Intermediate	Size	Medium(11-20 cm)
Height	Insufficient information	Growth Rate	Insufficient information
Adult dispersal potential	Very limited (<1m)	Dependency	Independent
Sociability	Solitary
Toxic/Poisonous?	No
Additional Information	This 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 & Ireland	Present on all British and Irish coats.
Global distribution	Scandinavia to the Mediterranean and throughout western Europe (Manuel, 1988; Hayward & Ryland, 1995b).
Biogeographic range	Not researched	Depth range	Lower shore to >100 m (Manuel, 1988).
Migratory
Distribution Additional Information
Substratum preferences	Bedrock, Large to very large boulders, Small boulders, Cobbles, Pebbles, Gravel / shingle, Coarse clean sand, Fine clean sand, Crevices / fissures	Physiographic preferences
Biological zone	Lower Eulittoral, Sublittoral Fringe, Upper Infralittoral	Wave exposure
Tidal stream strength/Water flow		Salinity
Habitat Additional Information	Typically buried in sand or gravel attached to a stone or shell or in crevices in rocks (Manuel, 1988; Hayward & Ryland, 1995b).
AMBI Group (Borja et al., 2000)	not assigned
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 span	Insufficient information	Age at reproductive maturity	Insufficient information
Generation time	Insufficient information	Fecundity
Egg/propagule size		Fertilization type
Larvae/Juveniles Larval/Juvenile dispersal potential Insufficient information Larval settlement period Duration of larval stage Insufficient information
Additional Information	This species is not thought to reproduce asexually and viviparity has not been reported (Manuel, 1988).
Reproduction References	Manuel, 1988