The Nematodes

Cuticle modifications - posterior end

The following six images illustrate nematodes with posterior cuticular modifications. Click on each image to show an enlarged, labelled version of the same image.


bursasma.JPG (33484 bytes)

nobursaA.JPG (31179 bytes)

Fig.1. Cooperia.Tail end of  male showing copulatory bursa, spicules and bursal rays.

Fig. 2. Heterakis. Tail end of   male showing Spicule (A), caudal ala (B) and pre-cloacal sucker (C). Vas deferens = D.


Smcaudala.JPG (21365 bytes)

smcopbursa.JPG (32243 bytes)

Fig. 3.  Oesophagostomum. Tail end of a female showing caudal ala (A) and a tapering tail with a blunt end.
Fig. 4. Bunostomum. Tail end of a male showing spicules (A), and a pronounced copulatory bursa with lateral lobes (B) and bursal rays (C).


smmenageatrois.JPG (20805 bytes)

Fig. 5. Equine strongyles.Two males (A) competing to copulate with a female (B). Copulatory bursae are labeled (C).
Fig. 6. Oesophagostomum. Copulating male (A) and female (B). Copulatory bursa is labeled (C).



Parasites and Parasitic Diseases of Domestic Animals
Dr. Colin Johnstone (principal author)
Copyright 1998 University of Pennsylvania
This page was last modified on January 24, 2000