Rowland M. Shelley's Annotated Checklist of the Millipeds of California.

"ABSTRACT.—The milliped fauna of California consists of 11 orders, 24 families, 83 genera, and 226 species and subspecies. A complete listing of these taxa and intergrades is provided, with published and new records from the state and type localities.

Cylindroiulus caeruleocinctus (Wood), C. truncorum (Silvestri), Ophyiulus pilosus (Newport) (all Julida:
Julidae), and Opiona fisheri Gardner and Shelley (Chordeumatida: Caseyidae) are newly recorded from California. The new combination Atopetholus wheeleri (Chamberlin) is proposed."

 - Photo (c) Paul G., some rights reserved (CC BY-NC), uploaded by Paul G. Check list for Class Diplopoda
Source: Shelley, Rowland M. Annotated Checklist of the Millipeds of California (Arthropoda: Diplopoda). Monographs of the Western North American Naturalist 1, 2002, pp. 90–115. (Link)
justin2 Added by justin2 on October 12, 2012