• Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Crustacea
  • Class: Maxillopoda
  • Subclass: Thecostraca
  • Infraclass: Cirripedia
  • Superorder: Thoracica
  • Order: Sessilia
  • Family: Balanidae
  • Scientific name: Balanus crenatus
  • Norwegian: skipsrur

Characteristics:

This is a sessile barnacle, easily recognized by the bright white color. The diameter rarely exceeds 2 cm and the height 4 cm. The shape is conical or almost cylindrical in crowded populations. The barnacle is unable to close the lids (carina) entirely, due to the slightly concave profile towards the tip.

Habitat:

It thrives on hard surface from the subtidal zone to a depths of a hundred meters.

Distribution:

B. crenatus is distributed over the entire northern hemisphere.