Genus Stylotheristus Lorenzen, 1977

Diagnosis (modified from Fonseca & Bezerra, 2014). Body length approximately 2 mm. Cuticle striated. Anterior sensilla arranged in two crowns with the number of setae in the second crown depending on the sex and life stage; six + four in juveniles and females and six + ten in males. Buccal cavity conical. Pharyngeal muscles well-devel- oped around the buccal cavity. Spermatheca can be present. Spicules short (<one anal body diameter). Gubernaculum narrow, without apophysis. Precloacal supplements present or absent. Three caudal glands opening via separate pores. Tail conico-cylindrical with three terminal setae.

Monospecific: Stylotheristus mutilus (Lorenzen, 1973) Lorenzen, 1977