Encyclopedia of Parasitology

2016 Edition
| Editors: Heinz Mehlhorn


Reference work entry
DOI: https://doi.org/10.1007/978-3-662-43978-4_2847




Class of  Nematodes.

General Information

 Phasmids are present posterior to the anus; hypodermis uni- to multinucleate;  cuticle with 2–4 layers; males have only a single  testis and are commonly endowed with caudal  alae (known as copulatory bursa); somatic setae or papillae absent on females; amphids usually open to exterior through pores located dorsolaterally on lateral lips or anterior extremity; cephalic sensory organs are porelike, found on lips (16 in 2 circles with 6 inner and 10 outer ones).

Copyright information

© Springer-Verlag Berlin Heidelberg 2016