Photo by Frank Jordan, Tikal, Guatemala, May 2010.
This predatory snail feeds voraciously on other mollusks. It move rather quickly, for a snail, and spends its time checking out a variety of habitats seeking a meal. They in turn are fed upon by the mollusk eating snakes that are common where they occur.
Excellent source of discussion: Dourson, Daniel C. 2009. A Natural History of the Bladen Nature Reserve and its Gastropods. Belize Foundation for Research and Environmental Education.