168 U. S. NATIONAL MUSEUM BULLETIN 212 



Narceus woodi (Humbert and Saussure) 



Spirostreptiis woodi Humbert and Saussure, 1870, Rev. Mag. Zool., ser. 2, 



vol. 22, p. 177. 

 Type: Geneva Museum. 

 Type Locality : St. Louis, Missouri. 



Range: No definite localities known. Placement of this name in A^arcews 

 is tentative. 



Genus TYLOBOLUS Cook 



Tylobolus Cook, 1904 in Harriman Alaska Exped., vol. 8, p. 65. 

 Generotype: Tylobolus deses Cook, by original designation. 

 Range: California. 

 Species: One. 



Tylobolus deses Cook 



Tylobolus deses Cook, 1904, in Harriman Alaska Exped., vol. 8, p. 65, 



pi. 4, figs. 3a-3b. 

 Type: U. S. Nat. Mus. (No. 796). 



Type Locality: California; exact locality not known but probably either 

 the vicinity of Stanford or of Claremont. 

 Range: No definite localities known. 



Spirobolida of uncertain systematic position 



Spirostreptus californicus Humbert and Saussure 



Spirostreptus californicus Humbert and Saussure, 1870, Rev. Mag. Zool., 



ser. 2, vol. 22, p. 177. 

 Type : ? Geneva Museum. 

 Type Locality : California. 



Spirostreptus ignobilis Humbert and Saussure 



Spirostreptus ignobilis Humbert and Saussure, 1870, Rev. Mag. Zool., ser. 2, 



vol. 22, p. 177. 

 Type : ? Geneva Museum. 

 Type Locality : "North America." 



Tylobolus viduus Chamberlin 



Tylobolus viduus Chamberlin, 1940. Pomona Coll. Journ. Ent. and Zool., 



vol. 32, p. 81. 

 Type: Collection of R. V. Chamberlin. 



Type Locality: Known only from the female type specimen, probably 

 not a true Tylobolus in its restricted sense. 



Order SPIROSTREPTIDA 

 Spirostreptidea Brandt, 1833, Bull. Soc. Nat. Moscou, vol. 6, p. 200. 



