This document contains information about various protists including Chrysamoeba radians, Trypanosoma cruzi, Mastigoameba aspera, Spirotrichonympha flagellata, Chilomastix mesnili, and Giardia lamblia. It also mentions characteristics of these protists such as flagella, pseudopods, and trophozoites. Links are provided to additional information and images about these species on various biology websites.