BIOTIC Species Information for Caecum armoricum
Click here to view the MarLIN Key Information Review for Caecum armoricum
Researched byNicola White Data supplied byMarLIN
Refereed byDennis R. Seaward
General Biology
Growth formCylindrical
Feeding methodSub-surface deposit feeder
Mobility/MovementCrawler
Environmental positionInterstitial
Typical food typesvegetable detritus and ?bacterial and diatom film. HabitFree living
BioturbatorNot relevant FlexibilityNone (< 10 degrees)
FragilityRobust SizeVery small(<1cm)
HeightInsufficient information Growth RateInsufficient information
Adult dispersal potentialNot researched DependencyIndependent
SociabilityGregarious
Toxic/Poisonous?No
General Biology Additional InformationLittle is known of the biology of this species. Early shell form is a spiral disc of about one whorl. Subsequent growth is tangential, slightly curved and tapering. As the shell tube lengthens, the animal's body only occupies the newer part of the shell near the mouth. A septum is laid down closing off the unwanted part of the shell which then breaks off, keeping the shell small, this is repeated throughout the animals life. It is presumably an adaptation to interstitial life.
Biology References Seaward, 1987,
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