Colour Changes in Hippolyte varians

摘要: THE demonstration by Perkins1 that colour changes in Palaemonetes vulgaris were controlled a hormone originated the eye-stalks has since been confirmed and extended number of investigators (see Hanstrom's2 review). Gamble Keeble3 their classic study Hippolyte first to describe diurnal rhythm which persisted under constant environmental conditions. Within past five years, several papers on persisting rhythms pigmentary system crustaceans have appeared. The two English interpreted phenomena crustacean metachrosis, according view chromatophoral activity prevalent at time, as being dependent upon nervous system. We reinvestigated see whether endocrinal control similar found other was present.