Conceivably T. uncigerus given the lack of red coloration, but seemed like a female so hard to be sure.
These millipedes were found in the basement of my house.
On the Under Cliff Carriage Trail. Imaged only.
Millipedes are myriapods of the class Diplopoda that have two pairs of legs on most body segments. Each double-legged segment is a result of two single segments fused together as one (the name "Diplopoda" comes from the Greek words διπλοῦς (diplous), "double" and ποδός (podos), "foot"). Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a ball, like a pillbug.