Doris immonda 
Doto greenamyeri 
Doto ussi 
Dotted nudibranch 
Draparnaud's Glass Snail 
Drymaeus vincentinus 
Dusky Arion 
Dyakia regalis 
Eastern Heath Snail 
Eastern Whitelip 
Echineulima asthenosomae 
Eel Bornella 
Elegant Phyllidia 
Elysia marginata 
Emarginate dog winkle 
Emma's Hypselodoris 
Eubranchus ocellatus 
Eubranchus putnami 
Eubranchus virginalis 
Euglandina striata 
Euprotomus bulla 
Exrhysota brookei 
Eyed Sea hare 
Faithful sea slug