The distribution and morphological characteristics of CA-containing cell bodies of diencephalon in 7-9monthold fetuses were studied by means of Faglu histofluoresccnce method. Although the general distribution of CA cell bodies in the human diencephalon observed in the present study is similar to that in other mammals, there are some significant differences. A great number of CA neurons occur within the lateroventral hypothalamic zone. There are more numerous larger CA neurons distributed outside the periventricular gray in human diencephalon.