94 U.S. NATIONAL MUSEUM BULLETIN 266 



Tylobolus claremontus Chamberlin 1918b, p. 165. 



? Spirobolus californlcus Bollman 1887, p. 50; Keeton 1960a, p. 121. 



Tylobolus stebbinsi Chamberlin 1944, p. 113; Keeton 1960a, p. 121. 



Auxobolus claremontus Chamberlin 1949, p. 163. 



Auxobolus stebbinsi Chamberlin 1949, p. 165; Keeton 1960a, p. 122. 



Auxobolus simulatus Chamberlin 1949, p. 165; Keeton 1960a, p. 122. 



TYPE: Mus. Comp. Zool. 



TYPE LOCALITY: Claremont, California. 



OTHER LOCALITIES: St. Vincent, Baja California, Mexico (Bollman 

 1887). All other localities of above synonymous species in California. 



Suborder TRIGONIULIDEA 

 Family TRIGONIULIDAE 



Genus SPIROSTROPHUS Saussure and Zehntner 1902, p« 150, 



TYPE SPECIES: Spirobolus naresii Pocock. 



For full synonymy and bibliography of this genus and the following 

 introduced species see Loomis and Hoffrnan 1948, p. 52. 

 Spirostrophus naresi (Pocock). 



TYPE: British Mus. 



TYPE LOCALITY: Mahe Island, Seychelles. 



LOCALITIES IN CENTRAL AMERICA: Costa Rica (Chamberlin 1922; 

 Cook 1911a; Lootnis and Hoffman 1948). 



Order SPIROSTREPTIDA 

 KEY TO THE SUBORDERS OF SPIROSTREPTIDA 



1. Both anterior and posterior gonopods present and functional, the an- 

 terior pair usually with long flagellae; laminae linguales completely 



separated by the mentum CAMB ALIDEA 



Posterior pair of gonopods rudimentary or completely absent, an- 

 terior pair elaborate; laminae linguales not separated by the 

 mentum SPIROSTREPTIDE A 



Suborder CAMBALIDEA 



KEY TO THE FAMILIES OF CAMBALIDEA 

 1. Mentum divided, the promentum clearly separated . . . CAMBALIDAE 

 Mentum entire, no separate promentum LEIODERIDAE 



Family CAMBALIDAE 



Genus CAMBALA Gray 1832, pi. 135. 

 Eclytus Chamberlin 1952c, p. 10; preoccupied. 



