Juergen Freund / Star shaped Pincushion / Pillow cushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Star shaped Pincushion / Pillow cushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

David Fleetham / Reticulated brittle star (Ophiocoma brevipes) on cushion starfish (Culcita novaeguineae), Hawaii.

David Fleetham / Reticulated brittle star (Ophiocoma brevipes), and commensal shrimp (Periclemenes soror) on a cushion starfish (Culcita novaeguineae), Hawaii.

Pascal Kobeh / Indian cushion sea star (Culcita schmideliana) close up, coast of Dhofar and Hallaniyat islands, Oman. Arabian Sea.

Chris Newbert / Pincushion Sea Star (Culcita novaeguineae) skin, Indonesia

Juergen Freund / Skin detail of Pin cushion sea star (Culcita novaguineae) West New Britain, Papua New Guinea.

Juergen Freund / Star shaped Pincushion / Pillow cushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Star shaped Large pincushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

Bernard Castelein / Close up of skin and mouth of Cushion Star (Culcita schmideliana) Zanzibar, Tanzania

Solvin Zankl / Close up of mouth of Pincushion starfish {Culcita sp} Lembeh, Sulawesi

Chris Newbert / Pincushion Sea Star (Culcita novaeguineae) detail, Coral Sea

Fred Bavendam / Atlantic Trumpet Triton (Charonia tritonis) eating a Pincushion Sea Star (Culcita novaeguineae), Milne Bay, Papua New Guinea

Pete Oxford / Pincushion Sea Star (Culcita novaeguineae), Lesser Sunda Islands, Indonesia

Tony Wu / Female Cushion star (Culcita novaeguineae) spawning by climbing to top of reef to release eggs visible as cloud of tiny white dots. East China Sea, Kagoshima Prefecture, Japan.

Magnus Lundgren / Cushion star (Culcita novaeguineae), detail, Triton Bay, West Papua, Indonesia, Pacific Ocean.

David Fleetham / Commensal shrimp (Periclemenes soror) camouflaged on Cushion starfish (Culcita novaeguineae) Philippines.