This gland is located on the distal end of spermatophore cyst, and shaped like a semicylinder which consists of many acini.

促雄性腺位于精荚囊末端，半圆柱状，由许多腺泡组成，细胞内富含粗面内质网和高尔基，分泌蛋白质性质的激素。