202 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
the second (25:24); in dorsal view considerably procurved, a line 
tangent to the anterior edges passing through the anterior third of 
the lateral eyes. Anterior median eyes much smaller than the laterals, 
their diameters being about as 2 to 3; medians three fourths their 
diameter apart and near the same distance from the laterals. Pos- 
terior lateral eyes of nearly same size as the anterior laterals from which 
they are separated by less than their radius. Posterior median eyes 
much smaller than the laterals; oblong, with sides straight and ends 
more rounded. A line tangent to caudal edges of the two posterior 
eyes of each side intersects the anterior median eye of opposite side. 
Metatarsus I and II scopulate very nearly to base; metatarsus III 
scopulate over distal third; metatarsus IV scopulate only at distal 
end. 
Female. Length 38 mm. Length of cephalothorax, 21.2 mm.; 
width, 18.1 mm. Length of pars cephalica, 13.8 mm. 
fem. tib.+pat. met. tar. total 
Leg I 15mm. 20.9mm. 10mm. 6.5mm. 52.4mm. 
Leg II 13.8 18.1 9.9 6.1 47.9 
Leg III 12.3 16 11 6.1 45.4 
Leg IV 15.7 20 15.6 6.8 58.1 
Locality Peru: Aymas, Dr. W. H. Jones. (Type, M. C. Z. 145, 
one female). 
This seems to be the only true Eurypelma thus far recorded from 
Peru. 
DIPLURA MONTICOLENS,! sp. nov. 
Plate 7, fig. 9-10. 
Cephalothorax dusky brown, the margins of carapace and the eye- 
area darkest. Edges of sternum darker than median portion. Cheli- 
cera palpi and legs testaceous. Integument of abdomen dark above, 
light beneath; a series of three pairs of obscure light stripes extend- 
ing from near dorsal median line obliquely ventrocaudad across sides. 
Spinnerets testaceous, in part dusky, especially at ends. Hair of 
carapace light brown, those of sternum sparse, darker. Bristles of 
abdomen dark rufous brown, the shorter hairs mostly lighter. 
Eye-area twice as wide as long or very nearly so (67:34). Eye- 
tubercle highest beneath anterior median eyes, behind which it 
descends almost immediately and also slopes laterally from this 
1 Mons, mountain, incolens, inhabiting. 
