''Plumatyla humerosa'' is a

millipede Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a resu ...

species found in

mine Mine, mines, miners or mining may refer to: Extraction or digging * Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun ...

s, as well as

lava tube A lava tube, or pyroduct, is a natural conduit formed by flowing lava from a volcanic vent that moves beneath the hardened surface of a lava flow. If lava in the tube empties, it will leave a cave. Formation A lava tube is a type of lava ca ...

and

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

caves of northern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

and south-central

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

. It belongs to the family

Conotylidae Conotylidae is a family of millipedes in the order Chordeumatida. Adult millipedes in this family have 30 segments (counting the collum as the first segment and the telson The telson () is the posterior-most division of the body of an arthrop ...

. The millipede is likely a

troglophile Troglofauna are small cave-dwelling animals that have adapted to their dark surroundings. Troglofauna and stygofauna are the two types of subterranean fauna (based on life-history). Both are associated with subterranean environments – troglofau ...

with a white carapace and observed in lava caves though it may inhabit crevices as well. P. humerosa is observed frequenting areas with mold or bat feces on the cave floors. ''

Taracus marchingtoni ''Taracus marchingtoni'' is a genus of harvestman found in the lava caves of semi-arid and arid regions of central Oregon. It belongs to the family Taracidae and was first collected by Jean and Wilton Ivie in 1965 in Lava River Cave but not ident ...

'' has been observed feeding on ''P. humerosa'' within cave habitat.

References

{{Taxonbar, from=Q6546691 Chordeumatida Millipedes of North America

See also

References