Three new species of Satsuma Adams, 1868 (Gastropoda, Camaenidae) from Taiwan

Three new species of the genus Satsuma Adams, 1868, Satsuma hsuehshan n. sp., Satsuma nivnu n. sp., and Satsuma sunlinksea n. sp. from western Taiwan are described. Satsuma hsuehshan n. sp. is characterized by a dextral shell, curved basal lip, and the presence of a penial pouch. Satsuma nivnu n. sp. is characterized by a dextral shell, whorl not descending behind aperture, curved basal lip, and the presence of a penial pouch. Satsuma sunlinksea n. sp. is characterized by a dextral shell, straight and slightly downward basal lip, and the absence of a penial pouch. The penial pouch is a newly discovered structure in the reproductive system of Satsuma. The three new species were collected in a mountainous, middle altitude mixed forest.