Currently known only from southern Japan, including Okinawa-jima Island in the RyukyuPacific Ocean: southern Japan, including Okinawajima Island in the Ryukyu Islands, and Kagoshima, Miyazaki, Kochi, and Ehime Prefectures. The last locality was based on underwater photographs reported as Mullidae, indet. Gen. and sp. 1 by Takagi et al. (2010: 65) (Ref. 88711).