Japonia Gould, 1859

Lee, Yen-Chen, Lue, Kuang-Yang & Wu, Wen-Lung, 2008, Molecular evidence for a polyphyletic genus Japonia (Architaenioglossa: Cyclophoridae) and with the description of a new genus and two new species, Zootaxa 1792, pp. 22-38 : 35

Genus Japonia Gould, 1859

Type species: Cyclostoma barbata Gould, 1859 ( Gould 1859: Proceedings of Boston Society of Natural History, 6, p 425)

The genus was characterized by the thin paucispiral operculum with thinned edges, the globose conic form, free umbilicus, nearly circular peristome which barely touches the preceding whorl, and the projecting lamellar striae of growth decussating with revolving ridges in some cares furnished with epidermal barbs ( Gould 1859).