(Mesotheristus) (Mesotheristus) is a biological genus in the family Monhysteridae and order Monhysterida.
Mesotheristus aegypticus
Mesotheristus circumscriptus
Mesotheristus dubius
Mesotheristus erectus
Mesotheristus fimbriatus
Mesotheristus hirsutus
Mesotheristus laxus
Mesotheristus setifer
Mesotheristus setosus
Mesotheristus sphaerolaimus
Amphimonhystera
Amphimonhystrella
Austronema
Branchinema
Cenolaimus
Cobbia
Cylindrotheristus
Dactylaimus
Diplolaimella
Diplolaimelloides
Echinotheristus
Elzalia
Filipjeva
Gammarinema
Gonionchus
Hofmaenneria
Litotes
Longilaimus
Megalamphis
Mesotheristus
Metadesmolaimus
Monhystera
Monhystrella
Monhystrium
Odontobius
Omicronema
Paramonohystera
Promonhystera
Pseudosteineria
Pseudotheristus
Pulchranemella
Rhynchonema
Sitadevinema
Sphaerotheristus
Spiramphinema
Spirotheristus
Steineria
Theristus
Trichotheristus
Tripylium
Tubolaimus
Wieserius
Xenolaimus
Xyala
Zygonemella