Note:

Tassonomia:

Domain: Eukaryota - Whittaker & Margulis,1978 - eukaryotes
Kingdom: Animalia - C. Linnaeus, 1758 - animals
Subkingdom: Bilateria - (Hatschek, 1888) Cavalier-Smith, 1983
Branch: Protostomia - Grobben, 1908
Infrakingdom: Lophotrochozoa
Superphylum: Eutrochozoa
Phylum: Mollusca - (C. Linnaeus, 1758) Cuvier, 1795 - Molluscs
Class: Gastropoda - Cuvier, 1795 - Snails and Slugs
Subclass: Orthogastropoda - Ponder & Lindberg, 1996
Superorder: Heterobranchia - J.E. Gray, 1840
Order: Opisthobranchia - Milne-Edwards, 1848
Suborder: Notaspidea - P. Fischer, 1883
Superfamily: Umbraculoidea - Dall, 1889 (1827)
Family: Umbraculidae - Dall, 1889 (1827)
Genus: Umbraculum - Schumacher, 1817
Specific name: umbraculum - (Lightfoot, 1786)
Scientific name: - Umbraculum umbraculum (Lightfoot, 1786)