Terrestrial mollusc

Land snail Helix pomatia
Land slug Bielzia coerulans

Terrestrial molluscs or land molluscs (mollusks) are an ecological group that includes all molluscs that live on land in contrast to freshwater and marine molluscs. They probably first occurred in the Carboniferous, arising from freshwater ones.[1]

  1. ^ Howe 1911, p. 312.