Abstract
Two new species of millipedes are described from Oregon Caves National Monument, Josephine County, Oregon, USA: Taiyutyla caseophila, n. sp. (Conotylidae), a troglophile; and Opiona catorycha, n. sp. (Caseyidae), a troglobiont found in at least one other cave in the region. We also provide a brief discussion of the invertebrate biodiversity of Oregon Cave.
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