The aberrant ductule includes the ductulus aberrans inferior and the ductulus aberrans superior. A long, narrow tube, called the ductulus aberrans inferior, is occasionally found connected with the lower part of the canal of the epididymis or with the commencement of the ductus deferens. It is occasionally found to be unconnected with the epididymis. A second tube, the ductulus aberrans superior, is in the head of the epididymis and is connected with the rete testis.