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Tom Powers *


     ====== Rhabditia 
     |
<<===|===== Spiruria 
     |
     ====== Diplogasteria

Maggenti, 1991

Containing clade(s): Nematoda

Introduction

References

Introduction

The amphidial aperture shows little variation throughout the class. Most commonly it is porelike and located dorsolaterally on the lateral labia or anterior extremity. In some instances they are oval or cleftlike or located postlabially (generally in immatures). The cephalic sensilla are located on the labial region and are porelike or papilliform. In some parasitic groups the number of sensilla are reduced from 16 to four. At the level of the nerve ring there are generally a pair of sensilla called deirids. Generally there is a pair of sensilla located on the caudal region called phasmids. The cells of the hypodermis may be multinucleate. The cuticle varies from four layers to two layers and is generally transversely striated. Laterally, along most of the body length, there is a lateral wing area marked by longitudinal striae or ridges. In some parasitic forms the lateral alae may extend out from the body contour for a distance equal to the body diameter (Maggenti, 1991).

References

Maggenti, A.R. 1991. Nemata:  higher classification. In:  Manual 
          of Agricultural Nematology, W.R. Nickle [ed.] Marcel 
          Dekker, Inc., New York.

About this page

Page constructed by Marcella Shaver-Adams, madams@unlgrad1.unl.edu.

Tom Powers
E-mail: tpowers@unlinfo2.unl.edu.
University of Nebraska-Lincoln Department of Plant Pathology, 406 Plant Sciences Hall, P.O. Box 830722 Lincoln, NE 68583-2858

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Table of Contents

Introduction

References

About this page