Thirty of the adult _Aneides_ collected were examined for parasites;
most were parasitized by two species of nematodes, _Oswaldocruzia_ sp.
and _Thelandros_ sp. The former is found in the anterior part of the
small intestine and occasionally in the stomach, and the latter occurs
in the rectum. There were no gross intestinal pathological changes in
the salamanders resulting from parasitism. In fact, no pathological or
structural abnormalities were noted in any of the salamanders examined.
We believe the two nematodes are well-tolerated by the salamander.