We use peripheraland marginalloculiafter Chisholm et al. (1995). We call the glands opening into the posterior region of the ejaculatory bulb prostatic glands. What other authors have termed “eyes” we call “ocellar spot” or “ocellar granules”, depending on their concentrations. These structures represent the pigmented cells of ocelli found in the oncomiracidia, as in Neoheterocotyle rhinobatidis (Young, 1967) (see Rohde et al., 1999)