English
Species (15.149)
Frontomia acuminata- Frontonia ambigua Dragesco 1972
- Frontonia bullingtoni Dragesco 1960
- Frontonia canadensis
- Frontonia caneti Dragesco 1960
- Frontonia leucas ssp. leucas
- Frontonia leucis
- Frontonia minuta Dragesco 1970
- Frontonia obtusa
- Frontonia tanganyikae Dragesco & Dragesco-Kerneis 1991
- Frontonia roquei Dragesco 1970
- Frontonia rotunda ssp. rotunda
- Flectocarina dirempta
- Freia aculeata
- Freia americana
- Freia ampulla Möbius 1885
- Freia elegans
- Furgasonia tricirrata Gelei 1932
- Sepoides radiatus
- Setonophrys communis
- Sicuophora bufonicola
- Sicuophora macropharyngea
- Sicuophora xenopi Puytorac & Grain 1968
- Sicuophora xenopti
- Salpingella decurtata
- Salpingella curta
- Salpingella expansa
- Salpingella gracilis
- Salpingella secata
- Salpistes castaneus
- Saprophilus simonis
- Sathrophilus vernalis Dragesco & Groliere 1969
- Sathrophilus marinum
- Scaphidiodon loricatus
- Scyphidia amphibiarum
- Gervasius hemisphaericus
- Scyphidia gasterostei
- Scyphidia beebei
- Scyphidia fromentellii
- Scyphidia haemopis
- Scyphidia haemopsis
- Scyphidia littorinae
- Scyphidia ostracodarum
- Scyphidia patula
- Scyphidia pyriformis Perty 1852
- Scyphidia ringens
- Scyphidia scorpaenae
- Scyphidia spionicola
- Scyphidia terebellidis
- Scyphidia trituri
- Scyphidia helobdellae
- Scyphidia hirudineorum
- Scyphidia husmanni
- Scyphidia macropodia
- Seminassula picta
- Semitrichodina sphaeronuclea ssp. sphaeronuclea
- Semitrichodina sphaeronuclea Lom 1956
- Serioscyphus erlangensis
- Salpingacantha ampla
- Salpingacantha crenulata
- Salpingacantha exilis
- Salpingacantha perca
- Salpingacantha simplex
- Salpingella alata
- Salpingella altiplicata
- Salpingacantha unguiculata
- Salpingella acuminatoides
- Salpingella attenuata
- Salpingella costata
- Salpingella cuneolata
- Salpingella glockentögeri
- Salpingella faurei
- Oxytricha halophila Kahl 1932
- Salpingella laackmanni
- Salpingella jugosa
- Salpingella minutissima
- Salpingella lineata
- Salpingella regulata
- Salpingella ricta
- Salpingella octogenata
- Salpingella rotundata
- Salpingella subconica
- Schizocystia laevigata
- Schizopus norvegicus
- Schizocystia rugosa
- Rimostrombidium caudatum Kahl 1932
- Sparotricha vexillifer
- Spathidium lieberkühnii
- Spathidium macrostoma
- Spathidium rectitoratum ssp. amphoriforme
- Cystolophosis muciola
- Spathidium puteolagris
- Mystacodella bipes
- Spathidium securiforme ssp. securiforme
- Spathidium seppelti Petz & Foissner 1997 ssp. seppelti
- Spathidium simplinucleatum ssp. simplinucleatum
- Spathidium stammeri
- Spatidium amphoriforme Greeff 1888
- Spelaeophrya lacustris
- Spelaeophrya polypoides
