This last tube is probably the homologue of Laurer's canal (Goto, 8).
Nearer the uterus than the ep08phoron a few scattered tubules are occasionally found which are looked upon as the homologue of the organ of Giraldbs in the male, and are known as the paroophoron.
Thelyphonus and its allies, however, have a long tactile caudal flagellum, the homologue of the scorpion's sting; but its exact use is unknown.
In the hind-leg (where it is the homologue apparently of the peroneus brevis of man) the tendon becomes blended with that of the large extensor.
It also appears that there is a highly similar mouse homologue to that gene, however containing a few extra exons.