Weissius
{{Short description|Species of flatworm}}
{{Speciesbox
| name = Weissius capaciductus
| image = Weissius capaciductus.jpg
| image_caption = Dorsal view
| parent_authority = Sluys, 2007
| taxon = Weissius capaciductus
| authority = Sluys, 2007
}}
Weissius capaciductus is a species of dugesiid triclad found in Australia. It is the only species in the monotypic genus Weissius.Sluys, R., Grant L. J., & Blair D. (2007). Freshwater planarians from artesian springs in Queensland, Australia (Platyhelminthes, Tricladida, Paludicola). Contribution to Zoology. 76, 9-19.
Etymology
The genus was named for Annie Weiss, a planarian worker, in honor of her contributions to knowledge of Australian freshwater planarians. The specific epithet is derived from Latin, meaning "spacious duct" (capax + ductus), in reference to the expanded anterior section of the species' oviducts.