2 (?) specimens; unknown number of additional non-type specimens, deposited in a private collection
Yamasaki
Inland Sea off Seto
North West Pacific Ocean, Japan, Inland Sea of Japan, Wakasu, 16 km south of Mukaishima, station St. 4, 34°12.6'N, 133°11.52'E, 20 m depth, mud, collected 27.X.2009