| Abstract: | In female P. sophore the adrenal homologue is located inside its head kidneys and comprises interrenal cells and chromaffin cells. The clumps of interrenal cells surround the postcardinal vein and its major branches; they also lie in the haemopoietic tissue. The chromaffin cells mostly lie in the endothelium of the post-cardinal vein, while a few of them also lie interspersed among the interrenal cells. The seasonal study of the adrenal homologue shows that the interrenal cells undergo changes in bulk and composition in different months, while the chromaffin cells do not show any significant variation. |
