Genus Parabathylaimus De Coninck & Schuurmans Stekhoven, 1933

Diagnosis (modified from Shimada et al. 2021). Cuticle smooth or striated; three lips high, deeply incised; anterior sensilla all setiform; inner labial and cephalic sensilla jointed or not; outer labial sensilla jointed; buccal cavity not divided; teeth absent; amphids unispiral; long subterminal setae on tail present or absent; spicules shorter than 2.0 cloacal body diameters; gubernaculum with projection(s) at distal end; male monorchic with anterior testis outstretched; female didelphic-amphidelphic with reflexed ovaries.