Monhysteridae De Man, 1876
Theristus acanthospiculum
Theristus acer Bastian, 1865
Theristus acribus
Theristus acriformis (de Man, 1922)
Theristus acrilabiatus Kreis, 1928
Theristus acrolabiatus De Coninck & Schuurmans Stekhoven
Theristus aculeatus Schulz, 1935
Theristus agilis (de Man, 1880)
Theristus altenbachi Hoste E.
Theristus ambronensis Schulz, 1936
Theristus anisocirculus Blome, 1982
Theristus anisotrichus Lorenzen, 1972
Theristus arcticus
Theristus asymetricus
Theristus athesinus Andrassy, 1962
Theristus australis
Theristus balticus Lorenzen, 1973
Theristus bastiani Gerlach & Riemann, 1973
Theristus bathylaimoides Allgén, 1959
Theristus bathylaimus Allgén, 1959
Theristus biarcospiculum Timm
Theristus bidontolaimus Allgén, 1959
Theristus bipunctatus (Schneider, 1906)
Theristus blandicor Rachor, 1971
Theristus borosi
Theristus brachysetosus Allgén, 1959
Theristus brevicollis
Theristus buetschlii Bresslau & Stekhove
Theristus buetschlioides Chitwood, 1951
Theristus calx Wieser & Hopper, 1967
Theristus camelopardalis
Theristus caudasaliens
Theristus chitinolaimus (Allgén, 1932)
Theristus complexus Jayasree & Warwick, 1977
Theristus conicaudatus
Theristus copulatus
Theristus denticulatus Warwick, 1970
Theristus discolensis
Theristus diversispiculum
Theristus donsi Allgén, 1950
Theristus ensifer Gerlach, 1951
Theristus falklandiae
Theristus filicaudatus Allgén, 1959
Theristus (Daptonema) filispiculum (Allgén, 1932)
Theristus flevensis Schuurmans Stekhoven, 1935
Theristus gracilis (de Man, 1876)
Theristus grahami Allgén, 1959
Theristus gronlandicus
Theristus helveticus (Steiner, 1914)
Theristus helviticus Steiner, 1914
Theristus heterospiculoides Gerlach, 1953
Theristus heterospiculum (Allgén, 1932)
Theristus inermis Gerlach, 1953
Theristus interstitialis Warwick, 1970
Theristus kaszabi Andrássy, 1977
Theristus latissimus Filipjev, 1922
Theristus leptosoma Allgén, 1950
Theristus lineatus Gerlach, 1965
Theristus lingi Andrássy, 1960
Theristus littoralis Filipjev, 1922
Theristus longicaudatus Filipjev
Theristus longicaudatusviviparus Allgén, 1952
Theristus longicollis Blome, 1982
Theristus longisetifer Kito & Aryuthaka, 1998
Theristus longisetosus (De Coninck & Schuurmans Stekhoven, 1933)
Theristus longispicula
Theristus longissimecauda Lorenzen, 1973
Theristus longissimecaudatus Kreis, 1935
Theristus longus Platt, 1973
Theristus lorenzeni Pastor de Ward, 1985
Theristus macer
Theristus macquariensis (Allgén, 1929)
Theristus macrocirculus Allgén, 1959
Theristus macroflevensis
Theristus macropapillatus Allgén, 1959
Theristus maeoticus Filipjev, 1922
Theristus maior Gerlach, 1956
Theristus manicatus
Theristus maspapillatus
Theristus megalaimoides
Theristus megalaimus
Theristus melnikovi Tchesunov, 1986
Theristus meridianus
Theristus metaflavensis Gerlach, 1955
Theristus metaflevensis
Theristus meyli Riemann, 1966
Theristus mirabilis De Coninck & Stekhoven, 1933
Theristus modicus
Theristus monstrosus Gerlach, 1954
Theristus neglectus
Theristus nidrosiensis
Theristus norwegicus (Allgén, 1933)
Theristus notoistospiculoides Allgén, 1959
Theristus notosetosus Allgén, 1959
Theristus obtusicephalus Schuurmans Stekhoven, 1950
Theristus oistospiculum (Allgen, 1932)
Theristus orientalis Gagarin & Thanh, 2005
Theristus ostentator Wieser & Hopper, 1967
Theristus otoplanobius Gerlach
Theristus pacificus
Theristus pannonicus Andrassy, 1985
Theristus papillatus Murphy, 1965
Theristus paraelaboratus Timm, 1952
Theristus parambronensis Timm
Theristus parasetosus (Allgén, 1928)
Theristus parasiticus
Theristus paravelox Allgén, 1934
Theristus paroistospiculoides Allgén, 1959
Theristus parvulus Timm
Theristus pellucidus Allgén, 1939
Theristus pertenuis Schuurmans Stekhoven, 1935
Theristus pictus Gerlach, 1951
Theristus polychaetophilus Hopper, 1966
Theristus pratti
Theristus problematicus (Allgen, 1928)
Theristus profundus Blome, 1982
Theristus pyronasi Gerlach, 1965
Theristus quadripapillatus Decraemer & Coomans, 1978
Theristus rezaki
Theristus rhynchonemoides Hopper, 1961
Theristus roscoffiensis Vitiello, 1967
Theristus ruffoi Andrassy, 1959
Theristus sabulicola (Filipjev, 1918)
Theristus sanctimarteni Timm, 1957
Theristus scanicus Allgén, 1949
Theristus simplex Allgén, 1959
Theristus sinuosus Wieser, 1959
Theristus sonnae
Theristus stichotricha Schuurmans Stekhoven, 1950
Theristus strandi Allgén, 1934
Theristus stranus
Theristus subcurvatus
Theristus tenuicaudatus Allgén, 1951
Theristus trichospiculum (Allgén, 1933)
Theristus uncinatus Wieser, 1959
Theristus velox (Bastian, 1865)
Theristus vesentiniae Andrassy, 1962
Theristus wegelinae Andrassy, 1962
Theristus wimmeri Wieser, 1959