Molluscs
Molluscs, a large phylum of invertebrate animals, are the largest marine phylum, including about 23% of all marine organisms. Cephalopods, including the octopus, are among the most neurologically complex invertebrates. Gastropods (snails and slugs) are the most numerous molluscs, about 80% of the total.
Octopus
Big blue octopus, Octopus cyanea
Bivalves
variable thorny oyster, Spondylus varius
Cock's comb oyster, Lopha cristagalli
Honeycomb oyster, Hyolissa hyotis
Ducal thorny oyster, Spondylus squamosus
Black lip pearl oyster, Pinctada margaritifera
Fluted giant clam, Tridacna squamosa
Boring clam, Tridacna cf. crocea

Snails
Top shell, Tetus cf faveolatus
Worm shell, Serpalorbis grandis
Maldives sponge snail, Coriocella hibyae

Nudibranchs
Rose phyllidiella, Phyllidiella rosans
Elegant phyllidia, Phyllidia elegans

Phyllidiella sp.
Rudman's phyllidiella, Phyllidiella rudmani
Pleurobranchus cf forskali
Sea-blue phyllidia, Phyllidia marindica
Varicose wart slug, Phyllidia varicosa
Bohol discodoris, Discodoris boholiensis
Brown-edged glossodorid, Glossodoris hikuerensis
Indian caloria, Caloria indica
Green tambja, Tambja olivaria
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Last modified 4 November 2019