False ark shell

The false ark shells (Cucullaea) are a small genus of marine bivalve molluscs related to the ark clams. The genus is the only member of the family Cucullaeidae.^[2]

False ark shell
View of umbones of Cucullaea labiata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Arcida
Superfamily:	Arcoidea
Family:	Cucullaeidae Stewart 1930
Genus:	Cucullaea Lamarck, 1801 [1]
Species
See text
Synonyms
Cuculina Rafinesque, 1815

Species

The World Register of Marine Species lists the following species:

• †Cucullaea elegans (Fischer)^[3]
• †Cucullaea gigantea Conrad, 1862^[4]
• Cucullaea granulosa Jonas, 1846^[1]
• Cucullaea labiata Lightfoot, 1786)^[1]
• Cucullaea petita Iredale, 1939^[1]
• Cucullaea vaga Iredale, 1930^[1]