http://www.biosci.ohio-state.edu/~parasite/images.html

It contains over 550 images representing more than 180 species of parasites (from Acetodextra sp. to Zygocotyle lunata), listed alphabetically and taxonomically. For those parasitic species associated with specific diseases the diseases are also included in the alphabetical listing. For many of the species, information about their biology, life cycle, and distribution is also included.