Peterson 1985. Perognathus parvus olivaceus July 28. 18 mi. NE Iron Point, 4600 ft., Humboldt Co., Nevada. One caught on gently rolling plateau bordered by cliff on one side, gravelly & covered with sage brush. One specimen caught by Wm. Richardson found to have several small flukes, about 3 mm. long when fixed, in one restricted portion of large intestine. Flukes removed & fixed in Bouin's fixing fluid. July 29. 13 mi. N Paradise Valley, 6700 ft., Humboldt Co., Nevada. Five caught on canyon slope & N of Road Creek bearing growth of sage brush. July 30. 13 mi. N Paradise Valley, 6700 ft., Humboldt Co., Nevada. Eight specimens caught on canyon slope & N of Road Creek, on ridge between Road & Lye Creeks & on adjacent slope of Lye Creek. July 31. 13 mi. N Paradise Valley, 6700 ft., Humboldt Co., Nevada. One young individual caught along fence surrounding residence of Ranger of this section of Humboldt National Forest.