Tiny ducts (about 20 in number) connecting the testicular tubules with the epididymis.

group of epithelial tubules located in the center of the testis (male gonad) derived from the mesonephric duct, and allow spermatazoa to travel from the seminiferous tubules to the vasa efferentia. (More? Urogenital Notes)

network of spaces in the mediastinum testis.