Cyst Photos

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Drawing of a gordiid cyst, showing morphological features. C: cyst; CL: cyst larva. Note that the diagram is based on Paragordius varius.

Gordius 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.

Chordodes 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.

Paragordius varius cyst. For details, see the published report by clicking here.

Paragordius 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.

Chordodes sp. cyst. From laboratory culture of worms collected and isolated from Kenya.