The intervening segments contain the genitalia, which are on the Oligochaeta plan in that the gonads are independent of their ducts and that there are special spermathecae, one pair.
The compound organism now develops two sets of inter-connected genitalia and becomes a Diplozoon.
The Nematomorpha form an isolated group; at first sight they seem to be connected with the Nematoda, but in reality their only common feature is the tubular genitalia opening into a cloaca, and it seems at present impossible to connect them with the Annelida.
A genetic male will have female genitalia as a result of the deficient testicular androgens.
Dermatologists can see and treat patients with skin diseases and also many diseases which affect the genitalia and the inside of the mouth.