Decipula ovata – synonym of Montacuta tenella
Decipula tenella – synonym of Montacuta tenella
Defrancia suturalis – synonym of Comarmondia gracilis
Defrancia teres – synonym of Teretia teres
Defrancia trevelliana – synonym of Oenopota trevelliana
Delphinula costata – synonym of Ammonicera rota
Delphinula duminyi – synonym of Circulus striatus
Delphinula laevis – synonym of Skenea serpuloides
Delphinula nitens – synonym of Dikoleps pusilla
Delphinula pusilla – synonym of Tornus subcarinatus
Dendronotus arborescens – synonym of Dendronotus frondosus
Dentalium glabrum – synonym of Caecum glabrum
Dentalium striolatum – synonym of Dentalium entalis
Dentalium tracheum – synonym of Caecum trachea
Dentalium vitreum – synonym of Dentalium vulgare
Desmoteuthis hyperborea – synonym of Teuthowenia megalops
Desmoteuthis megalops – synonym of Teuthowenia megalops
Desmoteuthis tenera – synonym of Teuthowenia megalops
Desmoteuthis thori – synonym of Teuthowenia megalops
Diaphana candida – synonym of Diaphana minuta
Diaphana candida – synonym of Trivia arctica
Diaphana debilis – synonym of Diaphana minuta
Diaphana pellucida – synonym of Diaphana minuta
Diaphoreolis northumbrica – synonym of Cuthona viridis
Diaphorodoris luteocincta – synonym of Onchidoris luteocincta
Diaphorodoris luteocincta var. alba – synonym of Onchidoris luteocincta
Diaphorodoris luteocincta var. reticulata – synonym of Onchidoris luteocincta
Dikoleps nitens – synonym of Dikoleps pusilla
Diodonta barleei – synonym of Diplodonta rotundata
Diodonta bicarinata – synonym of Hiatella arctica
Dioeciostrea americana – synonym of Crassostrea virginica
Diplodonta berghi – synonym of Diplodonta rotundata
Diplodonta dilatata – synonym of Diplodonta rotundata
Diplodonta subrotunda – synonym of Diplodonta rotundata
Discodoris planata – synonym of Geitodoris planata
Divaricella divaricata var. elata – synonym of Lucinella divaricata
Donax anatinus – synonym of Donax vittatus
Donax atlanticus – synonym of Donax vittatus
Donax irus – synonym of Irus irus
Donax ruber – synonym of Donax vittatus
Donax semistriatus – synonym of Donax vittatus
Donax trunculus – synonym of Donax vittatus
Donax vittatus var. lactea – synonym of Donax vittatus
Donax vittatus var. magna – synonym of Donax vittatus
Dondersia banyulensis – synonym of Nematomenia banyulensis
Doridella batava – synonym of Corambe obscura
Doridella burchi – synonym of Corambe obscura
Doridella obscura – synonym of Corambe obscura
Doris arborescens – synonym of Dendronotus frondosus
Doris aspera – synonym of Onchidoris muricata
Doris auricolata – synonym of Facelina bostoniensis
Doris auriculata – synonym of Facelina coronata
Doris barvicensis – synonym of Goniodoris nodosa
Doris beaumonti – synonym of Onchidoris luteocincta
Doris bifida – synonym of Acanthodoris pilosa
Doris bifida – synonym of Hermaea bifida
Doris bilamellata – synonym of Onchidoris fusca
Doris bodoensis – synonym of Aeolidia papillosa
Doris branchialis – synonym of Favorinus branchialis
Doris britannica – synonym of Archidoris pseudoargus
Doris caerulea – synonym of Cuthona caerulea
Doris clavigera – synonym of Limacia clavigera
Doris coccinea – synonym of Rostanga rubra
Doris cornuta – synonym of Polycera quadrilineata
Doris coronata – synonym of Doto coronata
Doris depressa – synonym of Onchidoris depressa
Doris diaphana – synonym of Onchidoris muricata
Doris elongata – synonym of Goniodoris nodosa
Doris flammea – synonym of Archidoris pseudoargus
Doris flava – synonym of Polycera quadrilineata
Doris flemingii – synonym of Acanthodoris pilosa
Doris fusca – synonym of Acanthodoris pilosa
Doris fusca – synonym of Onchidoris fusca
Doris illuminata – synonym of Polycera dubia
Doris inconspicua – synonym of Onchidoris inconspicua
Doris johnstoni – synonym of Jorunna tomentosa
Doris laevis – synonym of Acanthodoris pilosa
Doris laevis – synonym of Cadlina laevis
Doris longicornis – synonym of Facelina coronata
Doris luteocincta – synonym of Onchidoris luteocincta
Doris maura – synonym of Aegires punctilucens
Doris mera – synonym of Archidoris pseudoargus
Doris montagui – synonym of Archidoris pseudoargus
Doris muricata – synonym of Onchidoris muricata
Doris nigricans – synonym of Acanthodoris pilosa
Doris nodosa – synonym of Goniodoris nodosa
Doris obvelata – synonym of Archidoris pseudoargus
Doris obvelata – synonym of Cadlina laevis
Doris obvelata – synonym of Jorunna tomentosa
Doris obvelata – synonym of Onchidoris fusca
Doris ornata var. marplatensis – synonym of Polycera quadrilineata
Doris ornate – synonym of Polycera quadrilineata
Doris paretii – synonym of Goniodoris castanea
Doris pedata – synonym of Coryphella pedata
Doris pennigera – synonym of Thecacera pennigera
Doris philippii – synonym of Jorunna tomentosa
Doris pilosa – synonym of Acanthodoris pilosa
Doris pinnatifida – synonym of Doto pinnatifida
Doris planata – synonym of Geitodoris planata
Doris planulata – synonym of Cadlina laevis
Doris proxima – synonym of Adalaria proxima
Doris pseudoargus – synonym of Archidoris pseudoargus
Doris pusilla – synonym of Onchidoris pusilla
Doris quadrangulata – synonym of Acanthodoris pilosa
Doris quadricornis – synonym of Okenia quadricornis
Doris quadrilineata – synonym of Polycera quadrilineata
Doris repanda – synonym of Cadlina laevis
Doris reticulata – synonym of Cadlina laevis
Doris rocinela – synonym of Acanthodoris pilosa
Doris rubra – synonym of Rostanga rubra
Doris similis – synonym of Acanthodoris pilosa
Doris sparsa – synonym of Onchidoris sparsa
Doris stellata – synonym of Acanthodoris pilosa
Doris sublaevis – synonym of Acanthodoris pilosa
Doris subquadrata – synonym of Acanthodoris pilosa
Doris tomentosa – synonym of Jorunna tomentosa
Doris tuberculata – synonym of Archidoris pseudoargus
Doris tuberculata – synonym of Geitodoris planata
Doris ulidiana – synonym of Onchidoris muricata
Doris vermigera – synonym of Aeolidia papillosa
Doris vocinella – synonym of Acanthodoris pilosa
Doris vulgaris – synonym of Onchidoris fusca
Doris zetlandica – synonym of Aldisa zetlandica
Dosinia exoleta var. castanea – synonym of Dosinia exoleta
Dosinia exoleta var. interrupta – synonym of Dosinia exoleta
Dosinia exoleta var. major – synonym of Dosinia exoleta
Dosinia exoleta var. parcipicta – synonym of Dosinia exoleta
Dosinia exoleta var. ponderosa – synonym of Dosinia exoleta
Dosinia exoleta var. radians – synonym of Dosinia exoleta
Dosinia exoleta var. zonata – synonym of Dosinia exoleta
Dosinia inflata – synonym of Dosinia lupina
Dosinia lupina var. rufescens – synonym of Dosinia lupina
Dosinia lupinina – synonym of Dosinia lupina
Dosinia rissoiana – synonym of Dosinia lupina
Dosinus lupinus lincta – synonym of Dosinia lupina
Doto armoricana – synonym of Doto pinnatifida
Doto aurea – synonym of Doto cuspidata
Doto aurita – synonym of Doto fragilis
Doto cornaliae – synonym of Doto cuspidata
Doto costae – synonym of Doto coronata
Doto costae – synonym of Doto cuspidata
Doto crassicornis – synonym of Doto fragilis
Doto pinnigera – synonym of Doto fragilis
Doto splendida – synonym of Doto coronata
Doto splendida – synonym of Doto cuspidata