A new species of the genus Cephalodella (Rotifera, Monogononta) from Korea, with reports of four additional cephalodellid species.

A new monogonont rotifer, Cephalodellabinoculata sp. nov. , was described from a soil sample collected in Korea. The new species is morphologically similar to C.carina but is distinguished by having two frontal eyespots, a vitellarium with eight nuclei, and the shape of its fulcrum. We also described four other cephalodellid species collected in Korea; Cephalodellaauriculata , C.catellina , C.gracilis , and C.tinca . Of these four species, C.gracilis and C.tinca were newly recorded in Korea. We provided the morphological characteristics of the five Cephalodella species along with photographs of trophi observed with a scanning electron microscope. Furthermore, we provided the mitochondrial cytochrome c oxidase subunit I gene sequences of the five species.