Common periwinkle

and periwinkle has multiple rows of sharp teeth to scrape algae off the rocks

Discover in real life
Common periwinkle

  • Food

    Algae, small larvae

  • Lifetime

    5 - 10 years

  • Length

    10 - 25 mm

  • Number of eggs

    10,000 - 100,000 eggs

  • Wear time

    Some days

  • IUCN Status

    Data deficit

  • EEP?

    No

5-10

years, that's how old the periwinkle can get

10-25

mm, that's how big the periwinkle can get

10.000-100.000

eggs, that's how many a periwinkle lays

Parcels of eggs

Common periwinkles can lay eggs throughout the year. Usually no eggs are laid when the water gets colder in winter. The female lays the eggs in firm packets. These packets have a kind of jelly inside that usually contains three or four eggs. Such a packet is no larger than one millimeter!