Invasive worms

jumping worm-UoWM cmyk

Marie Johnston/UoW-Madison photo

Two different species of Asian jumping worms (Amynthas agrestis, left and Amnthas tokionesis) are on display in this photo from the University of Wisconsin-Madison Department of Soil Science. The worms get their names from the distinctive thrashing, snake-like movements they make when disturbed. The worm on the right clearly shows the distinct pale/grey clitellum, which is one of the easier ways of distinguishing the jumping worms from more common (but still invasive) European earthworms.