Spirobolus gordanus Chamberlin, 1943 Arctobolus keysi Loomis, 1944 Narceus keysi Causey, 1955 Narceus gordanus, also known as smokey oak millipede and smokey ghost millipede, is a species of spirobolid millipede native to the south-eastern United States.

N. gordanus also has shorter legs than other Narceus species, and a deeper groove on the head in which the antennae rest.

[1] N. gordanus matches the color of sand in some Florida habitats, even though it is mainly active at night.

[2] Narceus gordanus, similar to other millipedes, responds to threats by secreting a foul-smelling and tasting fluid and coiling into a defensive spiral to protect its underbelly and head.

When exposed to human skin, these secretions can cause a harmless discoloration known as millipede burn.