Species (15.149)
- Eutintinnus pectinis
- Eutintinnus medius
- Eutintinnus macilentus
- Eutintinnus perminitus
- Eutintinnus procurrerens
- Eutintinnus similis
- Eutintinnus pinguis
- Eutintinnus tenuis
- Eutintinnus stramentus
- Eutintinnus tubulosus
- Rhabdostyla ovoides
- Hexagonifera vermiculata
- Hexotricha caudatum
- Histriculus similis Corliss 1977 ssp. tricirratus
- Histrio companatus
- Histrio erethisticus Stokes 1887
- Histrio hyalinus Vörösvary
- Histrio lemani Dragesco 1966
- Histrio steini Sterki 1878
- Holophrya bursata
- Hemiophrya gemmipara
- Hemiophrys bivacuolata Kahl 1931 ssp. bivacuolata
- Hemiophrys bivacuolata Kahl 1931
- Hemiophrys lanceolatus Dragesco 1965
- Clathrostoma ovum
- Hemiophrys loxophylliforme Dragesco 1960
- Hemiophrys procerus Penard 1922
- Hemiophrys procora Penard 1922
- Hemiophrys punctatus Kahl 1926
- Holophrya gelei Dragesco 1966
- Holophrya gulo
- Holophrya moblis Wang & Nie 1933
- Holophrya virescens
- Holophrya polyphysa Schmarda 1854
- Holophrya vesciculifera
- Holophrya viridis
- Holosticha caudatus Stokes 1886
- Holosticha aquarum Bürger 1906 ssp. dulcium
- Holosticha decolor Wallengren 1900
- Holosticha dragescoi
- Holosticha corlissi
- Holosticha flava
- Holosticha fossicola Kahl 1932
- Holosticha dubium
- Holosticha globulifera Kahl 1932
- Holosticha gracilis Kahl 1932
- Holosticha magnificus Kahl 1932
- Holosticha lacteus Kahl 1932
- Holosticha manca Gellert 1955 ssp. plurinucleata
- Holosticha marioni Gourret & Roeser 1888
- Holosticha manca Kahl 1932 ssp. manca
- Holosticha multinucleata Maupas 1883
- Holosticha musculus Kahl 1932
- Holosticha multicaudicirrus
- Holosticha pernix Wrzesniowski 1877
- Holosticha navicularum Kahl 1932
- Holosticha randani
- Holosticha rubra Ehrenberg 1838
- Holosticha spectabilis Kahl 1932
- Enchelydium clepsiniforme
- Holosticha simplex
- Holosticha sphagni
- Homalogastra binucleata
- Homalogastra chesapeakensis
- Homalogastra filificum
- Homalozoon minutus Dragesco 1966
- Homalozoon multinucleatum Dragesco 1966
- Hoplitophrya armata
- Hoplitophrya clavata
- Hoplitophrya falcifera
- Hoplitophrya fastigata
- Hoplitophrya lumbrici
- Hoplitophrya recurva
- Hoplitophrya securifrons
- Hoplitophrya uncinata
- Strombidinopsis claparede
- Horologinella apiculata
- Horologinella incurvata
- Horologinella extrema
- Horologinella lineata
- Horologinella obliqua
- Hemistomiosphaera parvula
- Hemmisphaerammina obstinata
- Astylozoon oxypus
- Heterocineta janickii
- Heterocinetopsis fluminicolae
- Hypocomella phoronopsidis Kozloff 1945
- Heterocinetopsis goniobasidis
- Heterocinetopsis siedleckii
- Heterocinetopsis lwoffi
- Opercularia parasitica
- Histiobalantium majus Kahl 1931
- Histiobalantium marinum Kahl 1933
- Histiobalantium marinum Kahl 1933 ssp. marinum
- Histiobalantium natans Claparede & Lachmann 1858
- Histiobalantium minor
- Urostyla gracilis Entz 1884 ssp. gracilis
- Holophrya brunnea
- Holophrya gargamellae Faure-Fremiet 1924
- Holophrya garmamellae Faure-Fremiet 1924