Holothuria (Thymiosycia) gracilis Semper, 1868
Table 1; appendix 1; figure 2c
Material examined. Northwest Western Australia, Kimberley Region, Camden Sound, Ngalanguru Island, 25 Mar 2015, WAM Z89008 (1).
Remarks. This species identity was established by François Michonneau (UF, pers. comm.).