ATOPETHOLID MILLIPEDS — HOFFMAN AND ORCUTT 



135 



hook, and, furthermore, the recent description of Atopetholus barbara- 

 nus states that the species differs from all others "in having the distal 

 end of the posterior gonopods with its border straight, not rolled in 

 or recurved." 



For the present, at least, the most reasonable course seems to be the 

 combination of the two names, with the recommendation that the 

 question be reopened someday by an investigator having an abundance 

 of material of all the species concerned. 



Atopetholus angelus Chamberlin 



Figures 2, 7 



Atopetholus angelus Chamberlin, 1920, p. 101; 1953, p. 138. — Chamberlin and 

 Hoffman, 1958, p. 155. 



Holotype: Male, Mus. Comp. Zool., from Edendale suburb, Los 

 Angeles, Los Angeles County, California, collected by Gordon Grant 

 on December 30-31. 



Figure 7 .—Atopetholus angelus Chamberlin, male paratype from Los Angeles County, 

 California: a, anterior gonopods, cephalic aspect; b, same, caudal aspect; c, left posterior 

 gonopod in caudal aspect, with the terminal part shown from cephalic aspect; d, lower 

 end of collum, left side. 

 511799—60 1 



