Species (22.489)
- 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
- Speleoscyphidia husmanni
- Colpoda stein
- Sphaeroidinella dehiscens
- Sphaerophrya doliolum
- Sphaerophrya hydrostatica
- Sphaerophrya natans
- Sphaerophrya sol Lauterborn 1901
- Sphaerophrya paramaeciorum
- Robulus truncatus
- Robulus ariminensis
- Robulus intermedius
- Rondostoma gargamellae
- Rosalina nitens
- Rotalia aculeata d'Orbigny 1846
- Vorticella apuntata
- Solenophrya calyciformis
- Solenophrya bulbacea
- Solenophrya dubia
- Solenophrya micraster
- Sphenophrya sphaeri
- Spinarcella batiformis
- Licnophora rosa Van As & Van As 2001
- Spirillina tenuissima
- Spirillina minima
- Spirillinga vivipara
- Spiroplectammina biformis
- Spiroplectammina deperdita
- Spiroplectammina mariae Marks 1951
- Spiroplectammina pectinata
- Spirostomum virescens
- Spiroxystonellites saetosus Knauer 1969
- Spongiocirrhus stentoreus Bullington 1940
- Zellia heritschi ssp. heritschi
- Stammeriella kahli Wenzel 1953
- Sphaerophrya stentorea
- Sphaerophrya stylonychiae
- Frontonia roqueae Dragesco 1970
- Sphaerophrya urostylae
- Spiretta plankticola
- Spirodinium spirale
- Spirodinium ferrum ssp. equinum
- Spirochona tentinnabulum
- Spirodysteria kahli
- Oxitricha pelionella Müller 1773
- Spirofilum tubicola natans
- Spirofilum tubicolanatans Gelei 1944
- Spirofilum tubicolonatans
- Spirofragma gracilis
- Spiroloculina alata
- Spiroloculina cretacea
- Spiroloculina exigua
- Spiroloculina hyalina
- Spiroloculina limbata
- Spiroloculina papyracea
- Spirostomum minor
- Spirostomum sempervirescens
- Soederia tubigula
- Spathidiodes hyalina Kahl 1926
- Spathidiosus bursa Gajewskaja 1933
- Kolpoda ochrea Müller
- Kolpoda nucleus Müller
- Spathidium amphoriforme Kahl 1930 ssp. rectitoratum
- Spathidium bavariense Kahl 1930 ssp. bavariense
- Spathidium campanella
- Spathidium chlorelligerum Kahl
- Spathidium elmenteitanum
- Spathidium latistomum
- Spathidium lieberkunii
- Spathidium lieberkühni sensu Faure-Fremiet 1924
- Spathidium opium
- Kolpoda cuneus
- Spathidium spathula Müller 1773 ssp. spathula
- Spathidium sphagnophilum
- Opistotricha macrostoma Dragesco 1972
- Syndaetor nudum
- Strombidium cylindromorphus
- Strombidium claparedi
- Strombidium dalum
- Strombidium epidemum
- Strombidium eurystomum
- Strombidium globosaneum
- Strombidium gracillimum
- Strombidium ioanum
- Strombidium hadai
- Strombidium globosum
- Strombidium kryalis Petz 1994
- Strombidium maedai
- Strombidium longipes