Family Haliplectidae

Revised 09/19/23

• Cuticle annulated, annules smooth.
• Body pores present.
• Somatic sensilla apparently absent in females, present in caudal egion of males. Without subcephalic or cervical sensilla, ocelli or deirid s
•  Inner and outer labial sensilla small, papilliform, located on the anterior surface of lips.
•  Cephalic sensilla papilliform or setiform, posetrior to labial region.
• Amphidial fovea circular (cryptospiral), posterior to labial region.
• Secretory-excretory system absent.
•  Stoma opening terminal, a long and narrow, cuticularized tube, occupying one-third to one-half of the total length of the pharyngeal region.
• Pharynx guitar-shaped, with smaller anterior and larger posterior bulb, muscular, with strongly developed cuticular lining.
• Number and arrangement of pharyngeal glands unclear.
• Cardia cylindrical or conoid, partly enveloped by the intestinal tissue in its posterior part.
• Female reproductive system didelphic-amphidelphic or monodelphic-prodelphic, ovaries reflexed antidromously.
• Vulva equatorial, transverse. Vagina straight; pars refringens vaginae absent.
• Male reproductive system diorchic. S
• picules symmetrical, strongly arcuate; gubernaculum present.
• A row of midventral precloacal papilliform sensilla.
• Supplements and postcloacal sensilla absent.
• Tail similar in both sexes, conoid or subcylindrical with rounded terminus.
• Three caudal glands present.
• Spinneret present

Genera:   

• Haliplectus Cobb, 1913
• Setoplectus Vitiello, 1971
• Geohaliplectus Siddiqi, 2012

Ref: Gharahkhani et al., 2022

References

Gharahkhani, A., Pourjam, E., Leduc, D., Pedram, M. 2022. The nematode genus Haliplectus Cobb, 1913 (Chromadorea: Haliplectidae): phylogenetic relationships, description of a new species from the Persian Gulf, southern Iran, and a tabular key to valid species. Nematology 24:639-655.

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