Proales amplus sp. nov., a new monogonont rotifer with a large epipharynx from Korea (Rotifera, Proalidae)

A new species, <i>Proalesamplus</i> sp. nov., is the 42^nd species within the genus <i>Proales</i>. This species exhibits unique morphological characteristics in the trophi, particularly in the epipharynx, which are distinctive enough to prevent misidentification with other <i>Proales</i> species. The habitus of the new species bears some resemblance to <i>P.phaeopis</i> Myers, 1933, sharing features, such as an elongated and fusiform body, two eyespots, a single foot pseudosegment, two short toes and the absence of a dorsal papilla between the toes. However, the epipharynx of the two species is markedly different. The unique epipharynx characteristic of this new species is unparalleled within the genus <i>Proales</i>.