Three new earthworms of the genus Amynthas (Megascolecidae) from Mt. Gyeryong, Korea

Three new Amynthas with two pairs of spermathecae are described from Mt. Gyeryong, Korea: Amynthas gyeryongensis sp. n., Amynthas gongjuensis sp. n., and Amynthas yeoi sp. n. Amynthas gyeryongensis sp. n., and Amynthas gongjuensis sp. n. have spermathecal pores in 5/6, 6/7, and vi, vii, while Amynthas yeoi sp. n. has spermathecal pores in 6/7 and 7/8. The former 2 species have two pairs of spermathecae in vi and vii, and lack genital marking. The latter has paired spermathecae in vii, viii, and genital marking paired in vii and viii. Descriptions of the new species are provided, including illustrations of the ventral view, male pore region, and spermathecae.