| Fig. 1: | Anterior end, showing the pharynx consisting of several rows of spiral thickenings |
| Fig. 2: | Posterior end of male, showing characteristic cuticular foldings, spicules, and arrangement of papillae at caudal extremity |
| Fig. 3: | Posterior end of female, showing opening of anus |
| Fig. 4: | Vulvar region of female |
| Fig. 5: | Egg containing coiled lava |