Phylum Sarcodina

FIGURE I. Comparative morphology of the amebas of man and schematic representation of their nuclei. Adapted from Figure 3-1 and Table 3-1 of Brown & Neva (1983), Basic Clinical Parasitology, Appleton-Century-Crofts, Norwalk, Connecticut. Number of nuclei in cyst, and size, morphology, and location of centrosome in nucleus are used as diagnostic features. Only Entamoeba histolytica is associated with unmistakable pathology. Others are commensals, which may cause secondary problems when there is a primary lesion.

Figure 2. Most amoebas follow the fecal-oral route:

Figure 3. Somehow, it figures that the “Fecal Face Dot Gallery” would be located in San Francisco. This, by the way, is NOT what is meant by the fecal-oral route.