Characters;"Ariophanta Des Moulins, 18291,2";"Nanina Gray, 18341,3";"Hemiplecta Albers, 18501,2,5";"Cryptozona Mörch, 18721,4" "Gametolytic duct";Short;long;absent;"short / absent" "Gametolytic sac";Bulbous;bulbous;bulbous;bulbous Epiphallus;"short, nearly absent";long;long;long "Epiphallic caecum";"long and straight";"short and straight";"long and straight or coiled";"long and straight" Flagellum;"very short or absent";long;short;short "Shell lobe";Absent;present;"present / absent";absent "Shell coiling";"dextral / sinistral";dextral;"dextral / sinistral";dextral "Central teeth";Tricuspid;unicuspid;"unicuspid / tricuspid";tricuspid Distribution;"South Asia";"Indonesia, New Guinea";"Southeast Asia, New Guinea";"South Asia, Indochina" "Type species";"Helix laevipes Müller, 1774";"Helix citrina Linnaeus, 1758";"Helix humphreysiana Lea, 1840";"Helix ligulata Férussac, 1819"