''Girardia dorotocephala'' is a species of
dugesiid triclad
A planarian is one of the many flatworms of the traditional class (biology), class Turbellaria. It usually describes free-living flatworms of the order Tricladida (triclads), although this common name is also used for a wide number of free-li ...
native to North America. It has been accidentally introduced in
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
.
[Sluys, R., Kawakatsu, M., Yamamoto, K. (2010). "Exotic freshwater planarians currently known from Japan". ''Belgian Journal of Zoology'', 140 (Suppl.). p. 103-109] ''Girardia dorotocephala'' is
cannibalistic, which led to its usage in
memory transfer experiments.
References
Dugesiidae
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