Blue Glaucus 
Blue mussel 
Blue Velvet Headshield Slug 
Blue-lined octopus 
Blunt-end Seahare 
Bobtail Squid 
Bohol discodoris 
Boring clam 
Bornella stellifer 
Bothriembryon kingii 
Brachidontes erosus 
Broadclub cuttlefish 
Brown Bubble Shell 
Brown-edge Glossodorid 
Brown-lined paper bubble 
Brown-lipped Snail 
Bulbaeolidia alba 
Bull Mouth Snail 
Bursatella ocelligera 
Bush Snail 
Butterfly-Wing Sand Shell 
Cadlinella ornatissima 
Caloria indica 
Candy nudibranch