Rm. Shelley et Sb. Bauer, DISTRIBUTION OF THE MILLIPEDE TYLOBOLUS-UTAHENSIS CHAMBERLIN, WITH REMARKS ON TYLOBOLUS-FREDERICKSONI (CAUSEY) (SPIROBOLIDA, SPIROBOLIDAE), The Great Basin naturalist, 57(3), 1997, pp. 231-237
Tylobolus utahensis Chamberlin, the only representative of the genus o
ccurring in the southwestern deserts, ranges from central Inyo County,
California, to the western periphery of Kane County, Utah. This distr
ibution roughly corresponds to the northern limit of the Mojave Desert
ecosystem and is also shown by the milliped Piedolus utus Chamberlin
(Spirobolida: Atopetholidae) and the centipede Theatops posticus (Say)
(Scolopendromorpha: Cryptopidae). Tylobolus fredericksoni Causey, ost
ensibly from Douglas County, Kansas, is designated a ''nomen dubium''
and disregarded pending collection of fresh material; Narceus gordanus
(Chamberlin) is deleted from South Carolina and Tennessee. Tylobolus
uncigerus (Wood) occurs north of the Columbia River in Klickitat Count
y, Washington, and Hiltonius thebanus Chamberlin is referrable to Onyc
helus Cook in the family Atopetholidae.