English
Species (15.149)
Orbopercularia oligochaetae- Orbopercularia laccobii
- Orbopercularia ominosa
- Orbopercularia oschei
- Tintinnopsis karajacensis ssp. minima
- Holophrya lieberkuehnii
- Opercularia beebei
- Opercularia cartilaginipes
- Opercularia berberina ssp. dichotoma
- Opercularia cema
- Opercularia berberina ssp. similis
- Opercularia chironomoni
- Cyclotrichium humilis
- Opercularia corisae
- Opercularia collegata
- Opercularia coronata
- Opercularia doliiforma
- Opercularia dryopidae
- Opercularia epistyliformis
- Opercularia dytisci
- Opercularia dytiscarum
- Opercularia gyrini
- Opercularia halipli
- Opercularia hebes
- Opercularia hustedti
- Opercularia hospes
- Opercularia hydropori
- Opercularia hyphydri
- Opercularia ilybii
- Opercularia kahli
- Opercularia laccobii
- Opercularia lichtensteini ssp. lichtensteini
- Opercularia lichtensteinii
- Opercularia microsdiscum
- Opercularia longigula
- Opercularia notonectae
- Opercularia philydri
- Opercularia pleae
- Opercularia plicatiles
- Opercularia procera
- Opercularia pseudoglommerata
- Opercularia pseudoberberina
- Opercularia putrina
- Opercularia reichenowi
- Opercularia rhanti
- Opercularia reifi
- Opercularia rouxi
- Opercularia scyphostyla
- Opercularia sebestyenia
- Opercularia sigarae
- Ophionella eichhornii
- Ophionecta oblonga
- Ophionella versatile
- Ophistodon niemeccensis
- Ophridium problematicum
- Ophrydia versatilis
- Ophrydium aedae
- Ophrydium ectatum
- Ophrydium eichhornii
- Ophrydium longipes
- Ophrydium flexile
- Ophrydium insolitum
- Ophrydium versatile Müller 1786 ssp. versatile
- Ophryodendron belgicum
- Ophryodendron halacaridis
- Ophryodendron macquariae
- Ophryodendron multicapitatum
- Ophryodendron prenanti
- Onychodromopsis kahli
- Onychodromus quadricornatus
- Onychodromus strenuus
- Dinophrya lieberkuehnii
- Opalina uncinata Schultze 1851
- Opalina recurva Claparède & Lachmann 1859
- Opercularia acilii
- Onochaspis leptaspis
- Onychodactylus acrobates Entz 1884
- Onychaspis leptaspis
- Onychaspis aculeata
- Oxytricha minor Kahl 1932
- Opalina mytili Quennerstedt 1867
- Opalina lumbrici Dujardin 1841
- Opalina planariarum Siebold 1839
- Bursaria leucas
- Ophryoglena cinerea
- Ophryoglena aurantiaca
- Ophryoglena caeca
- Ophryodendron variabilis
- Ophryoglena griseovirens
- Ophryoglena griseo-virens
- Ophryoglena minima
- Ophryoglena monophthalma
- Ophryoglena obliquisetae
- Ophryoglena pectans
- Orbopercularia hyphidri
- Orbopercularia henneguyi
- Orbopercularia lusti
- Orbopercularia illustris
- Orbopercularia philydri
- Orbopercularia pulchra
