O. robustus (Giles, 1892) Railliet et Henry, 1902

Description

Figures 1-7

1. Esophageal region, ventral view. 2. Male tail, lateral view. 3. Male tail, dorsoventral view. 4. Tail of female. 5. Genital cone, lateral view. 6. Tip of genital cone, ventral view. 7. Fused spicule tips of male.

Figures 7-9:

7. Buccal capsule, dorsoventral view. Arrow marks amphid or lateral papilla 8. Buccal capsule, lateral view. 9. Mouth collar, lateral view, showing 2 submedian papillae, each with a short bilobed process on the stalk (horizontal arrows) and a long slender tip, and an amphid (vertical arrow).