MILLIPEDS OF NORTH AMERICA 185 



Type Locality : Mount Tamalpais, Marin County, California. 

 Range : Known only from type locality. 



Genus STENOCYBE Chamberlin 



Stenocybe Chamberlin, 1950, Chicago Acad. Sci. Nat. Hist Misc. No. 68, 



p. 3. 

 Generotype: Stenocybe waipea Chamberlin, by original designation. 

 Range: California. 

 Species: One. 



Stenocybe waipea Chamberlin 



Stenocybe waipea Chamberlin, 1950, Chicago Acad. Sci. Nat. Hist. Misc. 



No. 68, p. 3. 

 Type : Collection of R. V. Chamberlain. 

 Type Locality : Squaw Creek, Placer County, California. 

 Range: Known only from type locality. 



Order POLYZONIIDA 



Ommatophora Brandt, 1841, Recueil, p. 49. 

 Polyzonidae Gervais, 1844, Ann. Sci. Nat, ser. 3, vol. 2, p. 78. 

 Polyzoniidae Bollman, 1893, U. S. Nat. Mus. Bull. 46, p. 186. 

 Polyzonoidea Cook and Loomis, 1928, Proc. U. S. Nat. Mus., vol. 72, art 

 18, p. 4. 



KEY TO NORTH AMERICAN FAMILIES OF POLYZONIIDA 



I. Eyes absent; head narrowed forward or prolonged into a beak; prozonites decidedly 

 smaller than the metazonites producing constrictions between the latter; dorsum 



pilose aixd tuberculate Siphonophoridae (p. 189) 



One or several ocelli on each side; head not strongly narrowed forward or pro- 

 duced into a beak; the prozonites not forming a constriction between the meta- 

 zonites; dorsum without hairs or tubercules POLYZONiroAE (p. 185) 



Family POLYZONIIDAE Gervais 



Polyzonidae (in part) Gervais, 1844, Ann. Sci. Nat, ser. 3, vol. 2, p. 78. 

 Polyzoniidae (in part) Wood, 1865, Trans. Amer. Philos. Soc, vol. 13, 



p. 248. 

 Polyzoniinae Bolbnan, 1893, U. S. Nat Mus. Bull. 46, p. 186. 



Genus BDELLOZONIUM Cook and Loomu 



BdeUozonium Cook and Loomis, 1928, Proc. U. S. Nat. Mus., vol. 72, art. 



18, p. 15. 

 Generotype: BdeUozonium cerviculatum Cook and Loomis, by original 

 designation. 



Range: Central California north to Oregon. 

 Species: Three. 



