(1) Nipponoscaphander japonicus (Adams, 1862)

[original designation Scaphander japonicus Adams, 1862]

Remarks: The species S. japonicus Adams, 1862 was assigned to the genus Bucconia byKuroda and Habe (1954), who provided illustrations of specimens identified by Adams. These authors later transferred the species to the newly described genus Nipponoscaphander erected based on S. japonicus (Kuroda et al. 1971) . Later, the species has been ascribed arbitrarily either to Scaphander (Valdés 2008, Poppe 2010, Hori 2017) or to Nipponoscaphander (Guangyu 1997, Qi 2004), but recently, Siegwald et al. (2022) confirmed the affiliation of S. japonicus with the genus Nipponoscaphander, based on molecular phylogenetic evidence.