Invited cover image by Eric Roettinger

Close-up of the mouth region of the cushion star, Culcita novaeguineae, an echinoderm found in Hawaiian waters. The photographer, Eric Roettinger, works as a postdoc in Mark Martindale's lab at the Kewalo Marine Laboratory (Hawai'i). Visit www.kahikai.com or www.livingonabeach.com for more of Eric's fascinating photographic portraits of the ocean and the creatures in it.