Cuthonga kanga 
Cyclophorus perdix 
Cyerce elegans 
Cyerce kikutarobabai 
Cystopelta purpurea 
Dark-spotted Auger 
Decollate snail 
Decumbent Spanish Dancer 
Dendrodoris carbunculosa 
Dendrodoris denisoni 
Dendrodoris fumata 
Dendrodoris guttata 
Dendronotus regius 
Dermatobranchus albus 
Dermatobranchus funiculus 
Dermatobranchus ornatus 
Desirable Flabellina 
Diana's Chromodoris 
Diminovula culmen 
Diversidoris crocea 
Diversidoris flava 
Dog whelk 
Doriprismatica sibogae 
Doriprismatica stellata