Giant Round Worms (Ascaris lumbricoides)
Though not assigned to any major organs, the nematode turns its waste into ammonia and partly urea, but mostly the former. This is released through diffusion of the skin. As well as nitrogenous waste the round worm releases salt through a pore designated for excretion in the pharynx allowing it to maintain osmotegulation, which is the regulation of osmotic fluids in an organisms body helping the body maintain homeostasis. Two renette glands help process this salt excretion throughout the worm. These glands are unicellular and differs from most others within the phylum.
Hook Worms (Necator americanus)
The deadly hook worm has a similar excretory process as the giant round worm. This similarities lie in that they both have an unstructured system of releasing the nitrogenous waste from the blood. The waste mainly releases through the skin of the worm. The worm is parasitic and therefore uses the glandular process of excreting the salt from the body of the worm with two renette glands. The other process found within nonparasitic worms involves two canals found in the hyperdermis of the worm; these meet at a transversal canal which also release the salt at the excretory pore.
Loa Loa
The Loa Loa also known as the eye worm, is a parasitic nematode that infects the eyes, often causing death in those inflicted. This yet again excretes its nitrogenous waste through the diffusion of the skin. The Loa Loa, being parasitic also, has the two renette glands transferring the salt excretion to the pore, releasing it from the body. The excretion of the Loa Loa is also very irritable to humans, and when infected often leads to intense itching or allergic relations including the swelling of area around the eye. This is one of many reasons this worm, is rather dangerous. Scientist are still very unsure on how or if many parasitic nematodes release water. This is why little can be said about how they release, but many speculate that they simple release it with its other nitrogenous waste.