18. G. tigrina Ibaraki (issued on Dec. 20, 2008)
Chinone, S., Yamamoto, K. & Kawakatsu, M., 2008. The first record of a North American freshwater planarian, Girardia tigrina (Girard) (Plathelminthes, Tricladida) from Ibaraki Prefecture, Central Japan. Bull. Ibaraki Nat. Mus., (11): 33-40.
Note. Reproduced copies of the cover of a reprint, the first page and 4 figures are given with English explanations.
Gtig Ibaraki Extract