Pachystoma Guppy, 1895 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Animalia phylum Mollusca class Gastropoda order Cycloneritida family Helicinidae genus Helicina Name Homonyms Pachystoma Blume Pachystoma Lioy, 1864 Pachystoma Sandberger, 1875 Pachystoma Wagner, 1905 Pachystoma Guilding, 1828 Pachystoma Albers, 1850 Pachystoma Gray, 1842 Pachystoma Guppy, 1895