English
Species (22.489)
Loxophyllum ochrea- Loxophyllum rostrum
- Loxocephalus foissneri Dragesco & Dragesco-Kerneis 1991
- Ophryoglena mucifera
- Ophryoglena octavia
- Ophryoglena panophrys
- Ophryoglena pelagica
- Ophryoglena polymicrocaryon
- Ophryoglena rhabdocaryon
- Ophryoglena wrzesniowskii
- Ophryoglena semivirescens
- Uroleptus bacillifer
- Ophryoscolex purkneyi
- Ophryoscolex purkynei
- Ophryoscolex purkynjei
- Ophthalmidium minutum
- Ophthalmidium gaultinum
- Opisthoden niemescensis Stein 1859
- Opisthiotricha tenuis
- Opisthonecta henneguy
- Opisthonecta hennegyui
- Opisthostomatella bengalensis
- Opisthostomum bengalensis
- Opisthostyla thienemanni
- Opisthostyla tritora
- Orbopercularia astacicola
- Orbopercularia calix
- Orbopercularia catillicola
- Orbopercularia carlae
- Orbopercularia corlissi
- Orbopercularia dreyeri
- Orbopercularia exigata
- Orbopercularia enochri
- Orbopercularia femoralis
- Orbopercularia finki
- Orbopercularia finleyi
- Orbopercularia gnathophila
- Orbopercularia micronectae
- 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
