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Girardia arizonensis copulatory apparatus

Description in the original paper:

Fig. 5. Dugesia arizonensis, semidiagrammatic view of copulatory apparatus in sagittal section. ac, common atrium; am, male atrium; b, copulatory bursa; bd, bursal duct; de, ejaculatory duct; gp, gonopore; od, oviduct; sg, shell glands; vd, vas deferens; vs, seminal vesicle.

In the present this species belongs to the genus Girardia.

Illustration published in:

Kenk, R. (1975). Freshwater triclads (Turbellaria) of North America. VIII. Dugesia arizonensis, new species. Proceedings of The Biological Society of Washington. 88, 113-120.

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Photographer: Roman Kenk. Publisher: Solà, Eduard.