Note:

Sembrerebbe un mollusco ma è un crostaceo, uno dei pochi sessili.

Tassonomia:

Domain: Eukaryota - Whittaker & Margulis,1978 - eukaryotes
Kingdom: Animalia - Linnaeus, 1758 - animals
Subkingdom: Bilateria - (Hatschek, 1888) Cavalier-Smith, 1983
Branch: Protostomia - Grobben, 1908
Infrakingdom: Ecdysozoa - Aguinaldo Et Al., 1997 Ex Cavalier-Smith, 1998
Superphylum: Panarthropoda - Cuvier
Phylum: Arthropoda - Latreille, 1829 - Arthropods
Subphylum: Mandibulata - Snodgrass, 1938
Infraphylum: Crustaceomorpha - (Chernyshev, 1960)
Superclass: Crustacea - Pennant, 1777 - Crustaceans
Epiclass: Eucrustacea
Class: Maxillopoda - Dahl, 1956
Subclass: Thecostraca - Gruvel, 1905
Infraclass: Cirripedia - Burmeister, 1834
Superorder: Thoracica - Darwin, 1854
Order: Pedunculata - Lamarck, 1818
Suborder: Lepadomorpha - Pilsbry, 1916
Family: Lepadidae - Darwin, 1852
Genus: Lepas - Linnaeus, 1758
Specific name: anatifera - Linnaeus, 1758
Scientific name: - Lepas anatifera Linnaeus, 1758