Abstract
Summary
In the cetacean and armadillo hypophysis, the melanophore-dispersing hormone is found in greatest concentration in the antero-ventral region. The postero-dorsal (juxta-neural) region contains the lowest concentration. These findings accord well with those of DeLawder, Tarr and Ceiling and of Kleinholz and Rahn in the chicken hypophysis, in which the highest concentration of melanophore-dispersing activity was found in the anterior region of the gland.
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