Thyasira flexuosa

Researched By	Charlotte Marshall	Data Supplied By	MarLIN
Refereed by	This information is not refereed.
Taxonomy
Scientific name	Thyasira flexuosa	Common name	Wavy hatchet shell
MCS Code	W1837	Recent Synonyms
Phylum	Mollusca	Subphylum
Superclass		Class	Pelecypoda
Subclass		Order	Veneroida
Suborder		Family	Thyasiridae
Genus	Thyasira	Species	flexuosa
Subspecies
Additional Information
Taxonomy References
General Biology
Growth form	Bivalved	Feeding method
Mobility/Movement	Burrower	Environmental position	Infaunal
Typical food types		Habit	Free living
Bioturbator		Flexibility	None (< 10 degrees)
Fragility	Intermediate	Size	Small(1-2cm)
Height		Growth Rate
Adult dispersal potential	100-1000m	Dependency	Independent
Sociability	Solitary
Toxic/Poisonous?	No
Additional Information
Biology References
Distribution and Habitat
Distribution in Britain & Ireland	Present on all British and Irish coats although rare off south-east Britain.
Global distribution	This species is distributed from Iceland and northern Norway to the Iberian Peninsula, into the Mediterranean and to the Atlantic coast of Morocco, the Canary Is. And the Azores (Tebble, 1976).
Biogeographic range	Not researched	Depth range
Migratory
Distribution Additional Information
Substratum preferences	Sandy mud	Physiographic preferences
Biological zone		Wave exposure
Tidal stream strength/Water flow		Salinity
Habitat Additional Information
AMBI Group (Borja et al., 2000)	III
Distribution References	Tebble, 1976
Reproduction/Life History
Reproductive type	Gonochoristic	Developmental mechanism	Direct Development
Reproductive Season		Reproductive Location
Reproductive frequency	Annual protracted	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 Not relevant
Additional Information	Non-pelagic larval development (Thorson, 1946).
Reproduction References	Thorson, 1946