Chimaeriplana is a genus of polyclad flatworm belonging to the family Candimboididae, in the order Acotylea. The genus is monotypic, containing the sole species Chimaeriplana japonica.
Description Chimaeriplana is characterized by the presence of numerous prostatoid organs in the male copulatory apparatus and a penis stylet with a split tip, as well as the lack of a Lang's vesicle in the female copulatory apparatus. The eyespots are arranged into two elongate clusters in the brain region, as typical of the family.
Distribution Currently C. japonica is only known from its type locality, Sagami Bay, in Japan.
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