Photo of Animalia: Crown-of-thorns starfish (species: Acanthaster solaris cf.) (Lizard Island Field Guide)

One of at least 12 male Crown-of-thorns starfish spawning at Lizard Island on 18 Dec 2009. See record for details. Sperm pour from gonopores on the upper disc surface.

© Anne Hoggett and Lyle Vail