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Female:
Median bulb
well-developed.
Excretory pore at level of posterior region of isthmus.
Basal esophageal bulb elongate-pyriform. Not overlapping intestine.
Vulva a transverse slit with a pair of opposing
sclerotized pieces in lateral view.
Ovaries paired, outstretched, spermathecae
present.
Anterior part of tail rounded or
conoid
merging into
the conoid spike of the posterior part.
Male: Similar to female, except for
sexual dimorphism.
Spicules
slightly arcuate, distal end of gubernaculum
protruding from body.
Gubernaculum reflexed distally.
Males have unique caudal alae,
well-developed.
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