380 Annals Entomological Society of America [Vol. XI, 



c • r,u 11 1,0,3, 1,0 , . . .1,0, 3, 3, 1 



Spines of the anal legs ^ ^ ^ ^ ^ , claw single; penult, ^^ , 



1 ■ ^ ,w , ,^. 1,0,3,2, 1 1, 0, 3, 2, 2 ^ ,,. 1.0,3,2,2 



claw single; thirteenth, 0,1,3,3,2-071737372' '^'^^'^' 0.0.2,3,2 



^ , . ,, 0, 0, 3, 2, 2 ^ ^ 0, 0, 3, 2, 1 

 second to eleventh, ; first, :^ . Last three pairs 



of coxae laterally armed. 



Claw of female gonopods rather small, tripartite, the lobes acute, the 

 median obviously longer and stouter than the others. Basal spines 

 2, 2; moderately slender, in ventral view with sides parallel to acute 

 distal portion. 



In the male the anal legs have the third article strongly clavately 

 enlarged distad of the base, the thickening chiefly represented by a high 

 ridge situated dorsomesally and bearing distally a stout spine bifid 

 serrate at the apex somewhat as in xenopus, and a patch of long bristles. 

 This rounded, ridge-like lobe extends mesad well beyond inner side of 

 the succeeding or fourth article. Fourth article conspicuously excavated 

 and longitudinally furrowed along the dorsomesal surface as usual, but 

 the joint as a whole not bowed; at ends and along sides of furrow are 

 long setae. 



Length 14 to 1<S mm. 



Locality. — Okefenokee Swamp: Billy's Id., nine specimens 

 taken in June; and Honey Id., three specimens taken May 31 

 and June 1, 1912. 



Neolithobius mordax (L. Koch). 



One specimen, with head missing, referable to this species 

 taken at Creston. 



Neolithobius transmarinus (L. Koch). 



Numerous specimens taken in February and March, 1915, 

 near Creston, La. • 



