Tetraclita japonica

Tetraclita japonica, the Japanese volcano barnacle, Kurofujitsubo, is a species of symmetrical sessile barnacle in the family Tetraclitidae.

Subspecies
These subspecies belong to the species Tetraclita japonica:
 * Tetraclita japonica formosana (Hiro, 1939)
 * Tetraclita japonica japonica (Pilsbry, 1916)