Helm West Laboratory 1 article published in JoVE Environment Helminth Collection and Identification from Wildlife Maria S Sepulveda1, John M Kinsella2 1Department of Forestry and Natural Resources, Purdue University, 2Helm West Laboratory Wild animals are commonly parasitized by a wide range of helminths. The four major types of helminths are “roundworms” (nematodes), “thorny-headed worms” (acanthocephalans), “flukes” (trematodes), and “tapeworms” (cestodes). Here we describe how helminths are collected from a vertebrate animal and how they are preserved and taxonomically identified.