Limacinidae: Heliconoides inflatus (d’Orbigny, 1834) (‘planorbid sea-butterfly’)

Synonym(s): inflatus d’Orbigny, 1836.

Typical shell-length 1.4 mm. Lives in offshore waters in midwater. Native. Occurs all around Australia (QLD, NSW, TAS, VIC, SA, WA and NT); also widespread in warmer oceanic waters worldwide.