On the metacercaria and adult of Clinostomum van der horsti sp. n., a trematode parasite of fishes and herons

Abstract

From the above description it will be noted that the morphology is very similar to that of C. lophophallum Baer, 1933; it, however, differs from this species in that a pharynx is absent and the intestinal caeca open to the exterior through the excretory pore. These two characters together are of sufficient importance to separate this species from all the known species of this genus, and the writer has great pleasure in naming it after the donor through whose interest and kind service the material was made available for study.