We performed a genetic analysis using starch gel electrophoresis to the phylogenetic relationships of the genus Incilaria (Pulmonata, Philomycidae). As a result of the genus Incilaria was divided into I. fruhstorferi, I. bilineata, and Incilaria sp. groups. The average genetic similarity among the populations in each species of I. fruhstorferi, I. bilineata, and Incilaria sp. were s =0.635, s =0.550, and s =0.482, respectively. So the Incilaria sp. group was needed additional research. The genetic similarity between I. fruhstorferi and I. bilineata was s =0.364, I. fruhstorferi and Incilaria sp. was s =0.427, I. bilineata and Incilaria sp. was s =0.399, respectively.
