clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora Geomalacus is a genus of large air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Arionidae, the roundback slugs. == Etymology == The Ancient Greek word geo (γη) means the Earth. The Greek word malacus (μαλαχὀς) means mollusc. == Dis...