Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Tectipleura
Subcohors: Euopisthobranchia
Ordo: Cephalaspidea
Superfamilia: Diaphanoidea
Familiae (1): Diaphanidae
Name
Diaphanoidea Odhner, 1914
Diaphanoidea is a taxonomic superfamily of small sea snails, marine opisthobranch gastropod mollusks or micromollusks in the Cephalaspidea, the headshield slugs and bubble snails.
Species in this superfamily have small, flimsy, almost globular shells, known as paper bubble gastropod shells.
This superfamily is not monophyletic.[1]
Distribution
Species in this superfamily are found in cold seas, such as the Arctic region, Antarctica, Australia, and New Zealand.
Habitat
The species occur in the sublitoral to abyssal zones.
Shell description
The shell is minute, thin, fragile, colorless to translucent, and usually less than 5 mm in size. The overall shape is ovate, pear-shaped, and bulbous. There is a sunken apex.
Families
Families in the superfamily Diaphanoidea include:
Colinatydidae Oskars, Bouchet, and Malaquias, 2015
Cylichnidae H. Adams & A. Adams, 1854
Diaphanidae Odhner, 1922
Mnestiidae Oskars, Bouchet, and Malaquias, 2015
Notodiaphanidae Thiele, 1931 (taxon inquirendum)
References
Oskars T.R., Bouchet P. & Malaquias M.A. (2015). A new phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) based on expanded taxon sampling and gene markers. Molecular Phylogenetics and Evolution. 89: 130-150
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