Photo of Animalia: Giant Clam (species: Tridacna gigas) (Lizard Island Field Guide)

Tridacna gigas at Clam Garden, Lizard Island on 7 Nov 2021. This is the same half-white clam photographed in Dec 2015. Note the growth of corals on both shells over the six years and persistence of a vermetid snail on the lower shell over that period.

© Lily Mercieca