310
TH. LENDER
FIG. 5. During regeneration of the head of Dugesia lugubris, the neoblasts occupy an
X-irradiated anterior region. Methyl green-pyronine stain. (A), 12 days after irradiation,
no neoblasts; (B), 15 days after irradiation, the irradiated region is invaded by the
neoblasts. CN: nerve cells; N : neoblasts; T: nerve trunk.
TH. LENDER
FIG. 5. During regeneration of the head of Dugesia lugubris, the neoblasts occupy an
X-irradiated anterior region. Methyl green-pyronine stain. (A), 12 days after irradiation,
no neoblasts; (B), 15 days after irradiation, the irradiated region is invaded by the
neoblasts. CN: nerve cells; N : neoblasts; T: nerve trunk.