342 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 117 



Paraprocts glabrous, smooth, nearly flat, with prominent elevated 

 median edges, the ventral seta set on a tiny tubercule shghtly removed 

 from the rim, the dorsal seta set on an enlargement of the rim near its 

 dorsal end. Hypoproct large, smooth, flat, semicircular in profile, no 

 median apical projection; paramedian tubercules small, removed from 

 the edge, the setae very long (ca. 0.40 mm.). 



Ventral surface of prozonites smooth and polished, set off from 

 metazonites by a shaUow, sinuous interzonal fmTow. Legs set on 

 small subcoxal elevations, but entire sternal area between legs deeply 

 depressed, a thin elevated rim extending between the posterior legs 

 of each segment, bounding a concave, saucer-like area (fig. 22), the 

 surface of this depression different in texture from prozonite, fre- 

 quently rugulose punctate. All sternal areas smooth and glabrous, 

 no subcoxal spines developed. Sterna of midbody segments ca. 1.0 

 mm. wide, anterior legs of each segment distinctly wider apart than 

 the posterior, and set higher up on side of segment. Coxae and 

 prefemora short, subequal in length and shape except prefemora with 

 short acute spine, both sparsely setose; femora longer, clavate; post- 

 femora and tibiae short, as broad as long, tarsi longer, set with 

 numerous erect setae increasing in length toward the end, pretarsi 

 very small and short, concealed within the terminal tarsal setae. 

 Legs relatively long, the distalmost 3 podomeres visible beyond 

 paranota when extended laterad. 



Interzonal furrow distinct down sides of segments, best defined in 

 front of anterior stigma; lateral surfaces smooth and polished except 

 for a short horizontal ridge above the posterior coxae, this ridge most 

 prominent, and distinctly tuberculate, on anterior segments but ex- 

 tending back about to midbody. Stigmata very different in size and 

 shape, the anterior stigma larger, crescent shaped, posterior much 

 smaller, straight, elongate oval, less than Y2 as long and wide as 

 anterior; both stigmata lack elevated rims, both are distinctly sepa- 

 rated from dorsal coxal condyles. 



Anterior sterna and legs unmodified, without processes. Sternum 

 segment 6 with a subcoxal elevation at base of posterior leg pair, the 

 space between depressed for tips of gonopods. 



Gonopod apertm-e small, regularly oval, the posterior rim elevated 

 around to the lateral ends of the aperture. Gonopods relatively large, 

 extending cephaled between legs of 5th segment, of the form shown in 

 figure 24. 



Female (Jackson Co., Ala.) : Length of body 22 mm., width ca. 

 4.8 mm., body widest near segments 15-16. In details of body struc- 

 ture agreeing closely with foregoing description of male, except for the 



