Girardia arizonensis prepharyngeal region

Girardia arizonensis parasagittal section of prepharyngeal region

Description in the original paper:

Fig. 3. Dugesia arizonensis, parasagittal section of prepharyngeal region, x 74. ed, efferent duct; i, intestine; n, ventral nerve cord; t, testes; v, vitellaria.

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.