The gastrointestinal tracts, lungs, and urinary bladders from 77 Bufo microscaphus, 61 Bufo woodhousii, and 8 of their hybrids were examined for helminths. One species of trematode (Glypthelmins quieta), 1 species of cestode (Distoichometra bufonis), and 5 species of nematodes (Aplectana incerta, A. itzocanensis, Rhabdias americanus, Physaloptera sp., and Physocephalus sp.) were found. The greatest prevalence (41%) and mean intensity (231.7) were recorded for Aplectana incerta in Bufo woodhousii. It appears hybrids harbor fewer parasites than either parent species.
The Monte L. Bean Life Science Museum is located at Brigham Young University. The museum was opened to the public in 1978, is accredited by the American Association of Museums and maintains membership in the Natural Science Collections Alliance. Research collections of vascular and non vascular plants, invertebrate and vertebrate animals are maintained and made available to research scientists and educators. Public exhibits and educational programs are offered.
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