Genus Tobrilus Andrássy, 1959

Type species

Tobrilus gracilis (Bastian, 1865) = Trilobus gracilis Bastian, 1865 .

Diagnosis (after Andrássy 2007; Holovachov & Shoshin 2014)

Body 1.0– 4.5 µm long. Cuticle smooth or very finely annulated. Buccal cavity cup-or funnel-shaped, with overlapping subventral pocket and teeth close to each other. Vagina moderately strong. Spicules comparatively short. Supplements 3 to 13, mostly six, small, non-echinate, but with a small central thorn, submerged, not protruding. Spacing between supplements nearly equal.