chamberlin: the arachnida. 281 



and a half and seven times as long as area of the two posterior rows 

 of eyes. 



Labium a little longer than wide (28:25), reaching a little distad of 

 middle of endites; proximal notches long; distal margin wide, a 

 little incurved, (Plate 23, fig. 2). 



Sternum but little longer than wide, convexly rounded in front; 

 caudally ending in a short acute process between the last coxae. 



Chelicerae long and cylindrical, not very stout; lower margin with 

 three subequal teeth; upper margin with three teeth of which the 

 median is largest as usual. 



Tibiae I and II with three pairs of ventral spines of which the fii'st 

 two are very long and appressed, the distal pair much shorter; two 

 spines on anterior and two on posterior surface. Femur I with three 

 spines in middorsal line and with two on the anterior side of this and 

 three on the posterior. Patellae I and II unarmed; III and IV with a 

 spine on anterior and one also on posterior surface. Paired claws 

 with mostly eleven or twelve long teeth, these a little curved distad; 

 unpaired claw with two short teeth at base, (Plate 23, fig. 6). 



Male (Type). Length, 15 mm. Length of cephalo thorax, 7 mm.; 

 width, 5 mm. 



fern. tib.+pat. met. tar. total 



Leg I 7 mm. 8.5 mm. 5.7 mm. 3.5 mm. 24.7 mm. 



Leg II 6.9 8 5.6 3.5 24.0 



Leg III 6.7 7 5.5 3 22.4 



Leg IV 7.5 9 8.3 4 288 



Tibia I, 5.25 mm. Tibia IV, 6.8 mm. 



Female. Length, 13.3 mm. Length of cephalothorax, 6 mm.; 

 width, 4.6 mm. 



fem. tib +pat. met. tar. total 



Leg I 5.9 mm. 5.9 mm. 4.2 mm^ 3 mm. 19.0 mm. 



Legll 5.1 6.1 4.1 2.8 18.1 



Leg III 5 5.3 4 2.2 16.5 



Leg IV 6.2 7 6.6 3.1 22.9 



Tibia I, 4.9 mm. Tibia IV, 5.2 mm. 



ioca%.— Huadquina, 5,000 feet, July 26. (Type, M. C. Z. 

 269, male; paratypes, M. C. Z. 270, one male and one female). 



Named for Edward S. Harkness of New York, a patron of the 

 expedition. 



