Two new species of Satsuma A. Adams, 1868 from Taiwan (Pulmonata, Camaenidae)

Abstract. Two new sinistral species of the genus Satsuma A. Adams, 1868, Satsumasquamigerasp. n. and Satsumaadiriensissp. n., from southern Taiwan are described. Satsumasquamigerasp. n. is characterized by a microsculpture comprising coarse, irregularly-spaced ridges and dense, easily-dislodged triangular scales on its sinistral shell, an angulated periphery, and partly-opened umbilicus. This species inhabits secondary forests in lowland hills. Satsumaadiriensissp. n. is characterized by a thin, fragile smooth shell with microsculpture of coarse, loose ridges, a rounded periphery, completely-opened umbilicus, and elongated penial verge formed by two main pilasters. This new species was collected in a mountainous, mid-elevation, broad-leafed forest.