ATOPETHOLID MILLIPEDS — HOFFMAN AND ORCUTT 113 



evolution, it having developed a rliinocricid-type anterior gonopod 

 and several modifications for desert life while remaining unspecialized 

 in other respects. In the Arinolinae we reach the apex of atopetholid 

 evolution, with numerous localized species, the appearance of rudi- 

 mentary scobinae, and development of a distinct solenomerite on the 

 posterior gonopod, as well as a fundamental change in the location of 

 the ozopores and a loss of the original primitive segmental sutures. 



Genera Incorrectly Referred to the Atopetholidae 



At various times in the past certain genera have been either listed 

 in the family Atopethohdae or associated otherwise with genuine 

 atopetholid genera. Aside from inadvertant or careless listings, the 

 following names warrant comment : 



Anelus Cook, 1911, p. 160. 



Type species: Anelus reduncus Cook, by original designation; 



Unfortunately, the type specimen of this genus and species has 

 been misplaced and is not available for study. On the basis of Cook's 

 description, and that of the related A. richardsoni (Pocock), as well 

 as the examination of a female reduncus taken near the type locality, 

 it seems that the genus departs sufficiently from normal atopetholid 

 structure to warrant exclusion from the family. Cook's paper, pub- 

 lished before the Atopetholidae was proposed, considered Anelus to 

 be a close relative of Eurelus and Onychelus, but Anelus probably 

 belongs to a presently undefined Neotropical family. 



Banosolus Wang, 1951, p. 28. 



Type species: Banosolus phillippinus Wang, by original designation. 



This genus was originally proposed as a member of the Atopetholi- 

 dae, an allocation that needs verification by restudy of the type 

 specimen. The original illustrations leave much to be desired, and 

 the locality involved makes it seem possible that the genus may 

 actually belong to the related family Spirobolellidae, which is well 

 represented in the Indo-Australian region. 



Cyclothyrophorus Pocock, 1910, p. 83. 



Type species: Cyclothyrophorus salvini Pocock, by original desig- 

 nation. 



The remarks made for Anelus apply equally well in this case. 

 Details of gonopod structure are as yet virtually unknown, but the 

 weight of evidence suggests exclusion of this genus from the Atopetholi- 

 dae. Possibly, however, some of the species which Pocock tentatively 

 associated with C. salvini may prove to be atopetholids, as we know 

 to be true of Julus nietanus Saussure, which v/as listed in this genus 

 by Pocock (1910). If salvini upon restudy proves to be an atope- 



