298 Dr. Mello-Leitio on the 
equals their diameter ; posterior medians much smaller than 
the anterior medians, closer to posterior laterals, which are 
about as large as the anterior laterals and separated from 
them by a space which is quite equal to the long diameter of 
the latter. 
Stridulating bristles numerous and close-set, forming a 
subquadrate pad upon the distal third of the posterior side of 
the coxa of the palp, and a cluster above and below the suture 
at the distal end of coxa i. 
Posterior sternal sigille submarginal. Protarsus i. strongly 
arcuate, scopulated almost to base, with two apical and two 
basal spines ; protarsal scopula ii. covering ? segment, with a 
pair of long spines at its base ; of iii. covering 4, with many 
basal spines; of iv. covering about 4, which is elsewhere 
strongly spined. Tibiz of all the legs and of the palpus 
spined. Spurs of tibia i. well developed, the upper stout, 
straight, blunt, and bearing a rastellum of short black spines 
at tip; the lower crescently cylindrical, curved, with a sharp 
point. 
- Hab. Parané. oll. Bicego. Type in the 8S. Paulo 
Museum (no. 156). 
3. Grammostola chalcothriz, Chamberlin. 
Grammostola chalcothriz, Chamberlin, 1917, Bull. Mus. Comp. Zool. 
Harvard Coll. vol. lxi, p. 40. 
Hab. Republica Argentina. 
4, Grammostola pulchra*, sp. n. 
fd .—29 mm. ; ceph. 15x14 mm.; legs 50-48-46-55 mm. ; 
patella + tibia 1.19 mm., iv. 19 mm.; protarsus iv. 15 mm. 
? .—45 mm. ; ceph. 17 x 14 mm.; legs 46-42-39-50 mm. ; * 
patella + tibia i. 15°5 mm., iv. 15°5 mm.; protarsus iv. 12 mm. 
3 .—Cephalothorax, mandibles, pedipalps, legs, and abdo- 
men brownish black, with long bristles of light greyish tips, 
so that the spider seems black with abundant light points. 
Sternum, labium, and coxz velvety blackish. Coxe of pedi- 
palp and falces with fiery-red bristles. 
Cephalothorax longer than wide, distinctly shorter than 
patella and tibia i, or iv. and very slightly longer than pro- 
tarsus iv.; fovea deep, right transverse. 
Ocular tubercle low, distinctly wider than long. Eyes of 
the anterior row strongly procurved, the anterior edge of the 
medians being at centre of the laterals, the median being 
* Fine. 
