Beer barrel (Acteon tornatilis)
|Researched by||Saskiya Richards||Refereed by||Admin|
|Other common names||Lathe acteon, European acteon||Synonyms||-|
Acteon tornatilis has a thick, opaque, pink, external shell of up to 2-3 cm that is marked by 1-3 white bands on the body whorl and one white band on the remainder. Either side of each band is a narrow margin of dark pink. It is able to withdraw the whole of its body into its shell which is then sealed by an amber-coloured operculum. The shell aperture accounts for two-thirds of the shell length. Inside the lip of the shell is a distinctive tooth. The head of Acteon tornatilis has four large lobes and a cephalic disc that is used in burrowing through clean, fine sand together with a small foot that has blunt, propodial tentacles. Inside of the shell are folded mantle flaps.
Recorded distribution in Britain and Ireland-
- Thick, opaque, shell coloured pink.
- Body whorl is marked with 1-3 white bands.
- Remaining whorls marked with 1 white band.
- Each side of the white bands has a narrow margin of dark pink.
- Distinctive tooth on inside of lip.
- Head has four large, flattened lobes.
Acteon tornatilis is a carnivore, feeding on tubiculous, infaunal polychaetes, including Owenia fusiformis and Lanice conchilega. Acteon tornatilis was previously been known as Tornatella fasciata (pre-1950). Four species of the Acteon genus are found in Europe.
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Last Updated: 08/05/2008