Notodiaphanidae is a taxonomic family of small sea snails, marine opisthobranch gastropod molluscs or micromollusks in the superfamily Diaphanoidea, the headshield slugs and bubble snails.

The little-known species in this family have small, flimsy, almost globular shells, known as paper bubble gastropod shells.


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.

The shells resemble those of the genus Haminoea.

Genera and species in the family Notodiaphanidae

External links and references

  • Bois-Reymond Marcus, E. D. (1976): A taxonomic survey of the genus Toledonia Dall, 1902 (Opistobranchia, Diaphanidae). Zool. Scripta 5: 25-33
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