Japonia

Japonia is a genus of land snails with opercula, terrestrial gastropods in the subfamily Cyclophorinae of the family Cyclophoridae.

The genus was created by Augustus Addison Gould in 1959.

Species
The genus Japonia includes the following species:
 * Japonia alticola (Laidlaw, 1937)
 * Japonia anceps Vermeulen, Liew & Schilthuizen, 2015
 * Japonia balabacensis (E. A. Smith, 1895)
 * Japonia bauensis Marzuki, T. S. Liew & Mohd-Azlan, 2021
 * Japonia borneensis (E. A. Smith, 1893)
 * Japonia buehleri Forcart, 1936
 * Japonia bunguranensis (E. A. Smith, 1894)
 * Japonia celebensis (P. Sarasin & F. Sarasin, 1899)
 * Japonia changi C.-C. Hwang, 2015
 * Japonia ciliocincta (Martens, 1865)
 * Japonia citharella (Gould, 1859)
 * Japonia clathrata (Heude, 1885)
 * Japonia concolor (Möllendorff, 1893)
 * Japonia crossei (Morlet, 1886)
 * Japonia dido (Godwin-Austen, 1889)
 * Japonia ditropis Vermeulen & Junau, 2007
 * Japonia duplifolia C.-C. Hwang, 2015
 * Japonia fallax B. Rensch, 1931
 * Japonia formosana Pilsbry & Hirase, 1905
 * Japonia gouldi Kobelt, 1902
 * Japonia gradata (Möllendorff, 1894)
 * Japonia hagenmulleri (J. Mabille, 1887)
 * Japonia heteroveina C.-C. Hwang, 2015
 * Japonia hispida Minato, 1982
 * Japonia hyalina Vermeulen & Junau, 2007
 * Japonia inornata (E. A. Smith, 1893)
 * Japonia inouei Kuroda & Habe, 1961
 * Japonia janus Vermeulen & Liew, 2022
 * Japonia johnabbasi Thach, 2021
 * Japonia jucunda (E. A. Smith, 1893)
 * Japonia junipervallis C.-C. Hwang, 2015
 * Japonia katorii Minato, 1985
 * Japonia keppeli (Godwin-Austen, 1889)
 * Japonia lanyuensis Y.-C. Lee & W.-L. Wu, 2001
 * Japonia mariei (Morlet, 1886)
 * Japonia mendicans (J. Mabille, 1887)
 * Japonia metcalfei (Issel, 1874)
 * Japonia monggisensis Vermeulen & Liew, 2022
 * Japonia mucronata (Möllendorff, 1888)
 * Japonia mundyana (Godwin-Austen, 1889)
 * Japonia musiva (Gould, 1859)
 * Japonia pngsiar C.-C. Hwang, 2015
 * Japonia quinquelirata (Möllendorff, 1887)
 * Japonia rabongensis (E. A. Smith, 1895)
 * Japonia sadoensis Pilsbry & Y. Hirase, 1903
 * Japonia saetigera (van Benthem Jutting, 195)
 * Japonia shigetai Minato, 1985
 * Japonia striatula Kuroda, 1973
 * Japonia subcarinata (Möllendorff, 1887)
 * Japonia subconica (L. Pfeiffer, 1859)
 * Japonia subrudis Vermeulen & Liew, 2022
 * Japonia tadai C.-C. Hwang, 2015
 * Japonia tambunanensis Vermeulen & Liew, 2022
 * Japonia tenuipilis (Gredler, 1887)
 * Japonia thuthaoae Thach, 2021
 * Japonia tokunoshimana Pilsbry & Y. Hirase, 1904
 * Japonia trilirata (L. Pfeiffer, 1852)
 * Japonia trochulus (Martens, 1867)
 * Japonia wallacei (L. Pfeiffer, 1857)