Urocyclus subgen. Microcyclus Simroth, 1896 Dataset World Register of Marine Species Rank SUBGENUS Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Urocyclidae genus Microcyclus Name Homonyms Microcyclus Simroth, 1896 Urocyclus subgen. Microcyclus Simroth, 1896