Species (22.489)
- Diderma subincarnatum
- Dinamoeba mirabilis
- Dimastigamoeba gruberii
- Dinenympha gracilis
- Dinema griseolum Perty
- Leishmania aethiopica
- Dinobryon bavaricum
- Dinobryon marchicum
- Dinobryon gracile
- Dinobryon stipitatum ssp. lacustris
- Dinobryon stipitatum ssp. elongatum
- Dinobryon tabellariae
- Dinophisis arctica
- Dinophisis rotunda
- Dinophisis ovata
- Dinophisis ventricosa
- Dinophysis acuta
- Dinophysis laevis
- Dinophysis michaelis
- Diplochlamys leidyi
- Diplophrys archeri Barker 1868
- Diplophrys stercorea
- Diplopsalis lenticula
- Diplopsalis boreale
- Diplopsalis pillula
- Diplopsalis acuta
- Diplosiga socialis
- Diplotremina multifimbriata
- Encephalitozoon cuniculi
- Discoaster mediosus
- Discoaster delicatus
- Discoaster binodosus
- Discoaster cruciformis
- Discoasteroides megastypus
- Discospirella obscura
- Diselmis angusta
- Diselmis dunalii
- Diselmis marina
- Distigma pseudoproteus
- Docidium baculum
- Docidium clavatum
- Docidium coronatum
- Docidium hirsutum
- Docidium ehrenbergii
- Docidium nodosum
- Docidium minutum
- Docidium nodulosum
- Docidium truncatum
- Docidium undulatum
- Docidium verrucosum
- Didymella magnei
- Didymium anellus
- Didymium decipiens
- Didymium crustaceum
- Didymium ovoideum
- Didymium quitense
- Didymium sturgisii
- Didymium vaccinum
- Didymium verrucosporum
- Didymium trachysporum
- Didymoprium grevillii
- Difflugia bructeri
- Difflugia areolata
- Difflugia cancellata
- Difflugia denticulata
- Difflugia depressa
- Difflugia lagena
- Difflugia dryas
- Difflugia laevigata
- Difflugia globosa
- Difflugia marina
- Difflugia oligodon
- Difflugia pyriformis ssp. nodosa
- Trypanosoma brucei ssp. gambiense
- Difflugia reticulata
- Difflugia spirigera
- Difflugia striolata
- Difflugia squamata
- Difflugia tuberculosa
- Difflugia tricuspis
- Diflugia acuminata
- Diflugia globulosa
- Diflugia corona
- Diflugia constricta
- Diflugia lobostoma
- Diflugia pyriformis
- Diflugia vas
- Diflugia urceolata
- Hydrurus foetidus
- Enterocytozoon intestinalis
- Diselmis viridis
- Didymium aurantipes
- Didymium flexuosum
- Didymium intermedium
- Didymium floccosum
- Didymium fulvum
- Didymium iridis
- Didymium karstensii
- Didymium laxifila
- Didymium libertanium