| چکیده
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The genus Hexatylus Goodey, 1926 belonging to the family Neotylenchidae is distinguished from other members of the family with cephalic framework with eight sectors, the presence of strengthening rings around stylet, forked stylet at base, dorsal gland orifice near the base of stylet, lumen of esophagus joins lumen of intestine in region of nerve ring, esophagus glands overlap intestine dorsally, mono pro-delphic gonad in females, vulva as a transverse slit, close to anus, genital branch without post vulval sac,
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