Limulus chromatophorotropin: action on isolated Uca legs and in various crustaceans

Limulus CNS chromatophorotropin causes melanin dispersion in isolated legs of Uca. Theophylline potentiation of extract activity suggests that the material may act through the adenylate cyclase-cAMP system. The extracts are also active on the chromatophores of 7 decapod species from 6 families.