Exogone spp.

Researched By	Dr Paul Somerfield & Prof. Richard Warwick	Data Supplied By	PML
Refereed by	This information is not refereed
Taxonomy
Scientific name	Exogone spp.	Common name	A polychaete worm
MCS Code	P418	Recent Synonyms
Phylum	Annelida	Subphylum
Superclass		Class	Polychaeta
Subclass		Order	Phyllodocida
Suborder		Family	Syllidae
Genus	Exogone	Species
Subspecies
Additional Information
Taxonomy References	Howson & Picton, 1997
General Biology
Growth form	Vermiform segmented	Feeding method	Predator, Herbivore, Detritivore
Mobility/Movement		Environmental position	Epifaunal
Typical food types	Small invertebrates, detritus, algae, larvae.	Habit	Free living
Bioturbator		Flexibility	High (>45 degrees)
Fragility	Fragile	Size	Very small(<1cm)
Height		Growth Rate	Not researched
Adult dispersal potential	100-1000m	Dependency
Sociability	Solitary
Toxic/Poisonous?	No
Additional Information
Biology References	Fauchald & Jumars, 1979, Hayward & Ryland, 1995b, Rouse & Pleijel, 2001
Distribution and Habitat
Distribution in Britain & Ireland	Not researched
Global distribution	Not researched
Biogeographic range	Not researched	Depth range	Not researched
Migratory
Distribution Additional Information
Substratum preferences	Coarse clean sand, Gravel / shingle, Algae, Other species (see additional information)	Physiographic preferences
Biological zone		Wave exposure
Tidal stream strength/Water flow		Salinity
Habitat Additional Information
Distribution References	Hayward & Ryland, 1995b
Reproduction/Life History
Reproductive type	Gonochoristic	Developmental mechanism	Direct Development, Lecithotrophic
Reproductive Season	August	Reproductive Location	Water column
Reproductive frequency		Regeneration potential	No
Life span	Insufficient information	Age at reproductive maturity	Insufficient information
Generation time	Not researched	Fecundity	30-40
Egg/propagule size	100 µm	Fertilization type
Larvae/Juveniles Larval/Juvenile dispersal potential Not researched Larval settlement period August Duration of larval stage Not relevant
Additional Information
Reproduction References	Rouse & Pleijel, 2001, Thorson, 1946