— 134— 



tial surface of the ceph'x. With this view the ant- and post-lateral eyes appear ellipti- 

 cal in outline; but viewed from a point toward which each eye maybe said to "look"' 

 they are nearly circular in outline, and appear like "dormer windows", from the 

 arched portion of the caput for each one. Fig. 3, Plate V, represents position and 

 relative size of the eyes as seen from the view explained above; the arrows indicate 

 the direction from which the greater number of rays of light enter the eyes. A Hne 

 through the center of the ant-central eyes would pass a little above a line half way 

 lietween the base and opposite side of the trapezium; ant-centrals are situated from 

 each other, and from the ant-laterals about one diameter; receive the rays of light 

 directly from above. Post-lateral eyes in line with base of trapezium, or a trifle 

 anterior in some specimens, receive the rays of light from a point caudo-dorsal. Ant- 

 lateral, largest, ant-central and post-lateral of about equal size, post-central smallest, 

 though in one specimen they are of equal size with the ant-central and post-lateral. 



Ceph'x a little longer than broad at widest part. In one specimen 9 mm. x 8.25 

 mm., another 11 mm. x 10 mm. &c. U-shaped depression situated about two- 

 thirds of the distance from the anterior margin of the caput. Base of ceph'x 3.5 mm; 

 jiosterior angles quite sharply defined; lateral edge, from posterior angle to point of 

 greatest width, straight. Greatest height of ceph'x, 6 mm. Mandibles 3.5 mm. 

 long x 3 mm. deep. Abdomen 12 mm. long, whole length of spider 24.5 mm. Legs: 

 1st, 16 mm; 2nd, 15.25 mm; 3rd, 15.25 mm; 4ih, 19.5 mm. These are meas- 

 urements taken from one individual. In some thOlegs are 4, i, 2, 3. 



Armature. The legs have few hairs, though more abundant on tibia, metatarsus 

 and tarsus, of all the legs, and patella III and IV. 



Patella IV on sides of proximal half covered with very short spines. Anterior 

 side of metatarsus and tarsus IV slender spines; a few spines on under side, distal 

 end of tibia IV. Trochanter III with a short papilla. Anterior side and upper 

 distal end of patella III, whole upper surface of metatarsus III, and distal end of 

 tibia III, covered with short, strong, black spines. On upper side of proximal end 

 of metatarsus III is an elongated denuded spot, which seems to be the miniature of 

 the smooth depression at proximal end of tibia III; tarsus III with few spines. Tibia, 

 metatarsus and tarsus of II and I, and tibia and tarsus of palpus, with dense row of 

 short, strong, black spines on anterior and posterior sides. 



Sternum with few hairs on edge, longer than broad, in one specimen 6.25 mm. 

 by 5.75 mm., sharply angled between the articulation of the coxte; greatest breadth 

 between coxs II and III. 



Maxillae longer than coxa I; at edge of base a clustered row of short; strong, 

 brown spines; densely hairy with rufous hairs on anterior edge. Labium broadest at 

 base, distal end truncate, anterior angles well rounded; as long or nearly as long as 

 broad at base; armed near distal end with a few spines similar to those on the maxil- 

 he; separated from the sternum by a deep furrow. 



Colors. When alive. Ceph'x and legs deep glossy black. Abdomen light 

 brown. Ends of mandibles, hairs on end of mandibles, and on anterior edge of 

 maxillae reddish. Patella IV also reddish on upper surface. Under parts lighter 

 colored. Membrane connecting legs to ceph'x, and the joints of the legs whitish. 

 When placed in alcohol the glossy black after a while disappears, and becomes a 

 dark rufous brown, ends of legs remaining darker because of the presence of numer- 

 ous very short, black spines. 



Pachylomerus carabivorus. var. emarginatus, n. var. (9, i specimen.) 



This seems to be a varietal form of P. cai-abivorus. Labium trapezoidal, anterior 

 corners rounded ; shorter than broad at base. Ceph'x nearly as broad as long, lo 



