Nematodes Reference Libraries

Trichinella spiralis, sometimes known as the pork worm, is a parasite within the Nematoda class. It can be found in pigs, rats, humans, and bears. This worm causes trichinosis in humans, most often from consuming undercooked pork. This species is the smallest within its class, reaching an average body length of .16 centimeters. Females are twice as large as males, displaying a sexual...

The soybean cyst nematode (Heterodera glycines) is a parasitic worm that infects soybean plants, and other legumes, across the world. It is thought to be native to Asia, but was found in the United States in 1954 and in Colombia in the 1980’s. It can be found in Italy and Iran and its most recent sightings have occurred in Brazil and Argentina, two major areas where soybeans are grown. These...

The giant roundworm (Ascaris lumbricoides) is a parasitic worm within the Nematoda phylum. This species can be found throughout the world, but occurs in higher numbers in tropical and subtropical areas. It causes the disease known as ascariasis in its human hosts and infects about one quarter of the entire world’s human population. It displays a sexual dimorphism, with females growing larger...

The common root-knot nematode (Meloidogyne incognita), also known as the southern root-knot nematode, is a species of roundworm that infects plants. It can be found across the world and infects a number of different hosts. It resides in the root system of the host plant, creating gnarled roots and galls. This species travels through more shallow temperature gradients than other organisms. This...

The eye-worm (Loa loa) is a species of roundworm within the Nematoda phylum. It can be found in India and Africa, among other areas. This species causes a disease known as Loa loa filariasis and is one of three species that can cause subcutaneous filariasis in humans. Females are larger than males, reaching an average body length of up to 2.7 inches, with males reaching an average body length...

Caenorhabditis elegans is a species of parasitic roundworm in the Nematoda phylum. It can be found in temperate regions, in many different areas of the world. It prefers to reside in nutrient rich soils. Its scientific name is derived from the Greek terms Caeno, meaning recent, rhabditis, meaning rod-like, and the Latin term elegans, which means elegant. It was first named by Maupas in 1900,...

The dog roundworm (Toxocara canis) is a species of parasitic worm that infects canid species. It is yellowish white in color and can reach an average length between 3.5 and 7 inches, with females typically growing large than males. The dog roundworm can be transmitted in four different ways. The most common form of transmission occurs when an egg containing second stage larvae is released...

Thelazia callipaeda is a species of parasitic worm in the Nematoda phylum. It is one of the most common types of worm to infect the eyes of cats, dogs, and humans. This infection is known as thelaziasis or “eye worm” infestation. This species was discovered in 1910, in the eyes of a dog in China. In 2000, it was reported that 250 cases of eye worm infection had been documented in humans....

Wuchereria bancrofti is a species of roundworm in the Nematoda phylum. This species is spread through a mosquito vector, which means that it is transferred through mosquitos. This species infects over 120 million people in South America, Africa, and other tropical and subtropical areas. It is one of three species of parasitic worm that can cause lymphatic filariasis, which can lead to...

The New World hookworm (Necator americanus) is a hookworm that can be found in the New World. This species, along with other species in the Nematode phylum, is a parasitic worm that is commonly found in cats, dogs, and humans. Infections from this species are known as Necatoriasis. However, there are two common species of hookworm that infest humans, known as the Old World hookworm (Ancylostoma...