Excretory Pore

Its location is one of the important characters in Morphological identification of Nematodes,Usually at the anterior part of the body

e.g. At the level of Oesophagus end, in Dichelyne(Cucullanellus)(Nematoda:Cucullanidae))

Between the Ventrolateral Lips, in Contracaecum rudolphii L4 Larvae