A Histological Study on the ACTH Cells in the Pituitary Glands of Freshwater Teleosts

Abstract

Histological observations were made on the affinity of ACTH cells for lead hematoxylin and also on the distribution of these cells in the pituitary glands, using the following 10 species of teleosts; rainbow trout, Ayu, goldfish, carp, loach, two species of catfishes, Japanese eel, Medaka and snake-head fish. The teleostean ACTH cells exhibited a wide variation in the affinity for lead hematoxylin and also in histological distribution.