Flat Periwinkle

Name: Flat Periwinkle

Scientific name: Littorina obtusata

Category: Marine

Nature Stars: 40

What are nature stars?

About: A flattened whorled shell, up to 1 cm across, variable in colour but often bright yellow, orange or green. Found amongst seaweeds on which it feeds, around the lower parts of the shore.

How to identify: Told from similar snail-like periwinkles and topshells by the flattened shape and shiny, smooth shell.

Where: Found on rocky shores right around our coasts, absent from most of Lincolnshire and East Anglia.

Natural Superpowers

  • Predator: 20
  • Agility: 10
  • Rarity: 40
  • Cute factor: 30
  • Traveller: 30

Fantastic fact: Periwinkles are able seal themselves into their shell by closing the door, using a round 'operculum'.

Photograph credit: Photo credit tbc

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