Hemiphaedusa kawamotoi J.T. Kuroda & Is. Taki,1944 Japan, Yamaguchi12 mm
Mundophaedusa kawamurai KItô & T. Habe, 1982 Japan, Yokosuka
Megalophaedusa kawasakii (J.T. Kuroda, 1936) Japan, Aichi16 mm
Bulgarica keaufeli R.A.M. Brandt, 1961 Bulgaria10 mm
Atractophaedusa kebavica (O.F. von Möllendorff,1901) Vietnam, Tonkin
Phaedusa kelantanensis (E.R. Sykes, 1902) Malaysia28 mm
Albinaria kemerensis H. Nordsieck, 1993 Turkey19 mm
Formosana kiangshiensis (P.V. Gredler, 1892)
Zaptyx kikaiensis (H.A. Pilsbry, 1905) Japan, Kagoshima10 mm
Barcania klaptoczi (R. Sturany, 1908) Libya16,3 mm
Barcania klaptoczi gambettae R.A.M. Brandt, 1956 Libya16,2 mm
Albinaria klemmi O.E. Paget, 1971 Greece18 mm
Canalicia klikai (FOSSIL) (J.F. Babor, 1897 †) Czech Republic, Chomutov13 mm
Barcania klugi R.A.M. Brandt, 1956 Libya
Barcania klugi streyi R.A.M. Brandt, 1958 Libya19,1 mm
Siciliaria kobeltiana H.C. Küster, 1876 Italy, Cosenza14 mm
Constricta kochi (FOSSIL) (O. Boettger, 1877) †
Pfeifferiella koepckei (A. Zilch, 1953) Peru
Acrotoma komarowi (O. Böttger, 1881) Russia, Georgia
Formosana kongshanensis H. Nordsieck, 2007 China, Guangxi province18,9 mm
Hemiphaedusa koniyaensis H.A. Pilsbry, 1908 Japan, Kagoshima
Pliciphaedusa koshikijimana (H.A. Pilsbry, 1905) Japan, Kagoshima
Zaptyx kotoshoensis J.T. Kuroda, 1932 Japan
Euphaedusa krejcii H. Nordsieck, 2001
Formosana kremeri Grego & Szekeres, 2017
Albinaria krueperi (L. Pfeiffer, 1866) Greece, Akarnania
Albinaria krueperi dissipata (O. Böttger, 1878) Greece11 mm
Albinaria krueperi holostoma (O. Böttger, 1883) Greece13,7 mm
Hemiphaedusa kubinaga (J.T. Kuroda, 1936) Japan, Aichi16 mm
Cochlodina kuesteri E.A. Rossmässler, 1836 Italy, Sardinia Island, Calagonone16,8 mm
Cochlodina kuesteri sassariensis H. Nordsieck, 1969 Sardinia, Sassari14,4 mm
Mundiphaedusa kuninoae (J.T. Kuroda, 1936) Japan, Shiga
Mundiphaedusa kuninoae discrepans (J.T. Kuroda & T. Habe,1953) Japan, Gunma Prefecture28 mm
Euphaedusa kunmingensis C. Chen & S.Q. Zhang,1999 Yunnan, China
Euphaedusa kurodai T. Habe, 1943 Japan