Rev 12/17/2024
Chromadorea Rhabditia
Rhabditida
Tylenchina
Cephaloboidea
Osstellidae
Osstella Heyns, 1962
As of 2021, the only known species of this genus is O. hamata (Heyns, 1962) described from South Africa.
Rhabdions fused to form a tube which projects anteriorly beyond the lips.
Lips replaced by two subdorsal and two subventral hooks.
Esophagus with weakly developed basal bulb that has no valve.
Female:
Monovarial prodelphic.
Long overy reflexed to beyond vulva
Ref: Heyns, 1962