(Thyroproctus) (Thyroproctus) is a biological genus in the family Rhinocricidae and order Spirobolida.
Thyroproctus cinchonianus
Thyroproctus townsendi
Alcimobolus
Anadenobolus
Auracricus
Eurhinocricus
Fomentocricus
Haitobolus
Jobocricus
Leiocricus
Nesobolus
Oxypyge
Oxypygides
Rhinocricus
Thyroproctus
Yucatobolus
Zipyge