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All stages: Excretory pore
situated around level of nerve ring.
Female:
- Globose.
- Vulva appearing as terminal, om a cone, and anus as dorsal.
- Cuticle bearing numerous small spines.
- Uterine wall greatly thickened, transformed into a cyst which
retains part of the eggs.
- Some eggs deposited in a gelatinous matrix that covers female
Juveniles
- Vermiform
- Pharyngeal glands enclosed in terminal bulb
- Excretory pore at level of isthmus.
- Tail spicate or fienly roundsd
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