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Images -> Cysts


2Drawing of a gordiid cyst, showing morphological features. C: cyst; CL: cyst larva. Note that the diagram is based on  Paragordius varius.
2Gordius robustus cyst, early in formation process. Note that the cyst has not completed development, usually indicated by complete larva folding.  In this case, the larva would fold twice.  For details, see the published report by clicking here and here.
1Chordodes morgani cyst. This cyst has completed development, as the larva of this species fold only once.  For details, see the published report by clicking here.
5Paragordius varius cyst. For details, see the published report by clicking here.
3Paragordius varius cyst in a Monostome redia. This is an example of hyperparasitism- a parasite in a parasite. Note the developing cercaria within the redia.  This redia was found in a Physa sp. snail collected in Nebraska, USA.  For details, see the published report by clicking here.
6Chordodes sp. cyst.  From laboratory culture of worms collected and isolated from Kenya.


Copyright 2014 Ben Hanelt, Matt Bolek, and Andreas Schmidt-Rhaesa
Updated: July 2015