? canescens Polinski, 1922 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Clausiliidae genus Cylindronenia species Cylindronenia canescens Name Homonyms ? canescens Walker, 1873 ? canescens Waterhouse, 1846 ? canescens J.A.Allen, 1893 ? canescens D.C.Eaton ex S.Watson ? canescens Salvin, 1889 ? canescens Chapin, 1921 ? canescens Fosl. ? canescens G.Don