CHAMBERLIN: THE CHILOPODA OF BRAZIL. 193 
Caudal process of coxopleurae of anal legs very short; ending in 
three or four spines or points, the coxopleurae being otherwise unarmed. 
Pores very fine and numerous. 
First pair of legs with two tarsal spines. Second to nineteenth 
pairs with a single tarsal spine. Prefemur of nineteenth legs dorsally 
at distal end with a single spine; that of the twentieth with two spines; 
the femur of the latter pair dorsally at distal end also with a single 
spine. Prefemur of twentieth legs unarmed ventrally. 
Prefemur of anal legs with the corner process at distal end above 
ending in two stout points or teeth; ventrally with five spines ar- 
ranged in two transverse or somewhat oblique rows, a distal: row, 
composed of three spines, being at about the middle of length of joint, 
and a more proximal one of two spines (or in three longitudinal rows, 
2, 2,1); mesally with three or four spines in two longitudinal rows; 
and along dorsomesal edge with two spines in addition to a single 
one more strictly dorsal. Femur with two spines on proximal half 
along dorsomesal edge with a third one ventrad of these on the mesal 
surface; and, in addition, also a spine at distal end on mesodorsal 
corner. Claw with two basal spines which are very small. 
Length cir. 83 mm. 
Locality State of Matto Grosso: Madeira-Mamore R. R. camp 
39, on the Rio Madeira! (W. M. Mann). 
_ This interesting species is evidently close to S. armata described by 
Kraepelin from Venezuela (Maracaibo), with which it is characteris- 
tically separated from all others now known. Among the more 
important differences between these two species, so far as the descrip- 
tion of armata permits of comparison, may be mentioned the com- 
plete absence of any spines on the twentieth legs; the dense pubescence 
of antennae on all articles distad of the fourth; the distinct punctation 
of the first dorsal plate; the margination of the dorsad plates from the 
eleventh to fourteenth caudad instead of from the eighteenth or 
nineteenth; the absence of paired sulci passing entirely across any of 
the plates; the presence of two spines at base of claw of anal legs 
instead of but one, ete. 
SCOLOPENDRA POLYMORPHA Wood. 
Proc. Acad. nat. sci. Phil., 1862, p. 11; Kraepelin, Revis. Scolop., 1893, p. 241. 
Scolopendra copeiana Wood, Journ. Acad. nat. sci. Phil., 1862, ser. 2, 5, p. 27; 
Pocock, Biol. Centr. Amer. Chilopoda, 1895, p. 19. 
Scolopendra mysteca Humbert et Saussure, Rev. mag. zool., 1869, ser. 2, 21, 
p. 157. 
