CHAMBERLIN: THE CHILOPODA OF BRAZIL. 217 
distal end a stout, bluntly rounded, tooth and also bulging in a 
small well-rounded eminence near the proximal third where there is 
indication of a suture such as is frequently present (apparently of 
trochanter). 
_ Lateral margin of prosternum parallel for most of their length, in- 
curving only toward caudal ends. Prosternum a very little wider 
than long (ratio cir. 18:17); longer than the femur on outer side in 
about ratio 17:11; anterior margin bearing two low and rounded, 
strongly chitinous, teeth; hairs very sparse. (Plate 6, fig. 3). 
The paired sulci of the tergites distinct; in addition to these a 
median longitudinal sulcus may be evident in the anterior region. 
Prescuta very short in the anterior region, becoming moderately long 
in the median and posterior regions. Hairs mostly very short. 
Spiracles all circular. The first one distinctly larger than the 
second, the others gradually decreasing caudad as usual. 
First pair of legs reduced, being shorter and decidedly more slender 
than the second. Posterior pairs of legs relatively but very little more 
slender than the anterior ones. A small third tarsal division simulat- 
ing or corresponding to the extra one of the anal legs is evident on all 
legs but especially the more posterior pairs; it is short and consider- 
ably more slender than the preceding one. 
Anterior ventral plates with a rather deeply impressed median 
longitudinal sulcus which extends entirely across the plate. First 
ten or eleven sternites produced caudad into a wide triangular process 
or lobe which fits into a recess in the anterior border of the succeeding 
plate in each case. Ventral pores not detected. 
Last ventral plate very wide; trapeziform, the sides slightly convex 
anteriorly but substraight ine most of length, strongly converging 
caudad; caudal margin straight. (Plate 6, fig. 7). 
Coxopleural pores consisting of two large pits on each side; of 
these pits the anterior one each side is wholly covered by the ventral 
plate and the caudal one is covered excepting for a small portion. 
(Plate 6, fig. 7). 
Anal legs much longer than the penult; slender in the female. 
Second joint of tarsus long and slender; the third very short and 
abruptly more narrow. (Plate 6, fig. 7). Pairs of legs in the type 
thirty-seven. 
Length 13 mm. 
Locality— State of Para: Parad! (Mann and Baker). 
One female specimen was secured. 
