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Biology of long slender land planarians (Turbellaria) in Tokyo and environs

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Abstract

The common short-bodied species of Bipalium does not fragment, but individuals of two newly discovered long-bodied species — B. nobile Kawakatsu & Makino, 1982, and B. multilineatum Makino & Shirasawa, 1983 — do regularly fission, usually behind the mouth or genital pore. Some experimental regenerates of these species form rings by adhesion of the anterior with the posterior cut surface. We found two other forms of Bipalium, perhaps representing a further two species, in Hino City, Tokyo, in 1983; and we have preliminarily arranged the forms of Bipalium known in the region into four groups distinguished on the basis of body coloring, position of the mouth, and structure of the copulatory organ.

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Makino, N., Shirasawa, Y. Biology of long slender land planarians (Turbellaria) in Tokyo and environs. Hydrobiologia 132, 229–232 (1986). https://doi.org/10.1007/BF00046253

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