Tritium: distribution in Busycon canaliculatum (L.) injected with labeled reserpine.

Tritiated reserpine was injected into the body cavities of specimens of Busycon canaliculatum (Mollusca, Gastropoda). Only the ganglia, liver, and kidney were radioactive throughout the 14-day experiment. Radioactivity of the kidney and liver increased after the first measurement; that of the ganglia declined during the first day but later remained constant.