Unidentia Millen and Hermosillo 2012

Genus Unidentia Millen and Hermosillo, 2012 Type species: Unidentia angelvaldesi Millen and Hermosillo 2012. Diagnosis: Body narrow. Notal edge completely reduced. Cerata on distinct elongate elevations. Rhinophores smooth. Anterior foot corners present. Anus mixed (pleuroproctic in a higher acleioproctic position) or pleuroproctic. Central teeth with broad to narrow non-compressed cusp and distinct denticles. Lateral teeth absent. Proximal double or, rarely, single receptaculum seminis. Distal receptaculum seminis absent. Moderately long to short vas deferens with rapidly widened distinct prostatic part. Accessory gland absent. Penis conical, with relatively short hollow stylet. Species included: Unidentia aliciae Korshunova et al., 2019, U. angelvaldesi Millen and Hermosillo, 2012, U. nihonrossija Korshunova et al., 2017, Unidentia kiku sp. nov., and U. sandramillenae Korshunova et al., 2017.