Blackmouth sea cucumber (Pearsonothuria graeffei) on coral reef, Ras Mohammed National Park, Sharm Eel-Sheikh, Red Sea, Egypt, North Africa, Africa

Vibrant sea cucumbers, tunicates, hydroids, and other invertebrates cling to a reef in Raja Ampat, Indonesia.

Graeffe's sea cucumber (Pearsonothuria graeffe), in the shallow reefs off Sandy Beach, Manta Point, Raja Ampat, Indonesia, Southeast Asia, Asia