Nematoda are microscopic, unsegmented worms that range in size from 0.1 to 2.5 millimeters. They have a cylindrical body with a pointed tail and a rounded head. They are found in a variety of habitats, including soil, water, and plants. Nematoda have a lifespan of up to two years and their current population is estimated to be in the billions. They are distinguished by their long, thin bodies and their ability to move quickly.
Name Origin: The name Nematoda is derived from the Greek word "nematos" meaning "thread". This is in reference to the long, slender shape of many of the organisms in this group.
Related Species: Ascaris lumbricoides, Ancylostoma duodenale, Trichuris trichiura, Strongyloides stercoralis, Enterobius vermicularis