Zonites crystallina contracta Westerlund, 1871 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Pristilomatidae genus Vitrea species Vitrea contracta Name Homonyms Zonites crystallina contracta Westerlund, 1871 Zonites crystallina var. contracta Westerlund, 1871