Photo of Animalia: Hidden Urchin (species: Tripneustes gratilla) (Gaia Guide)

Photo of Animalia: Hidden Urchin (species: Tripneustes gratilla) (Gaia Guide)

Photo of Animalia: Hidden Urchin (species: Tripneustes gratilla)

Hidden Urchin (Tripneustes gratilla), Green Island
© David Witherall and Tanya McGahey

Usage licence: Creative Commons Attribution 3.0 Unported License