CHAMBERLIN: THE ARACHNIDA. 203 
point, the eyes being set obliquely to the horizontal plane. Anterior 
row of eyes in dorsal view a little procurved, in anterior view strongly 
recurved. Anterior median eyes inclusive of rim with diameter more 
than three fourths as great as that of the anterior laterals, less than 
their radius from each other and closer to the laterals; exclusive of 
rim the median eyes are less than their diameter apart and are near 
their radius from laterals. Anterior laterals very oblique, the anterior, 
narrow end lying in front of the ectal edge of the median eye. Pos- 
terior lateral eyes clearly smaller than the anterior laterals (diameters 
nearly as 3:4). Posterior median eyes smaller than laterals, closer 
to them than to the anterior medians. A line tangent to the caudal 
edges of posterior eyes on each side is tangent to or passes near caudal 
edge of anterior median eye of opposite side, (Plate 7, fig. 9, 10). 
Cephalothorax broad and low anteriorly (the width across eye area 
to greatest width about as 47:76). Thoracic fovea small, oval, 
transverse, situated considerably behind middle of length of carapace. 
Labium much wider than long, with anterior margin mesally in- 
curved. On anterior edge with two spinules present, a scar in type 
seeming to indicate the normal presence of a third one. 
Endites at proximal corner with a small group of few (8-10) spinules. 
Sternum as wide aslong. The sigillae marginal. 
Tarsi of legs slender, all conspicuously curved, those of the anterior 
pairs most strongly so. Paired claws each with a double row of mostly 
eight teeth. Inferior claw smooth, slender. Metatarsus I with three 
pairs of ventral spines; femur I with a spine at distal end on ante- 
rior side and above and another smaller one on the posterior side; 
other femora with corresponding spines, the posterior one increasing 
in size in going caudad. Posterior metatarsi much more strongly 
spined. None of the tarsi spined. 
Posterior spinnerets as long as abdomen; slender; articles sub- 
equal, the first thickest, the distal one most slender, narrowing distad. 
Anterior spinnerets short, distally acuminate. 
Female. Length 8.4 mm. Length of cephalothorax 3.4 mm.; 
width, 2.8 mm. 
fem. tib.+ pat. met. tar. total 
Leg I 3.4mm. 4.5mm. 2.9mm. 2.2mm. 13.0mm. 
Leg II aiail 4.1 2.8 Det V2e2 
Leg III 2.9 3.8 2.8 2.0 SS 
Leg IV 4.0 5.0 4.0 2s 1522 
Locality— Huadquina, 5,000 feet, July. (Type, M. C. Z. 146, 
female). 
