chamberlin: the arachnida. 223 



Sternum longer than wide in ratio 7:5 (Plate 12, fig. 3). 



Labium somewhat wider than long (nearly as 8 :7) ; distad of proxi- 

 mal third broadly, almost semicircularly rounded, but distally a little 

 depressed, (Plate 12, fig. 6). 



Tarsi III and IV a little curved, I and II straight. Anterior 

 tarsi not densely scopulate, the scopular hairs of tarsi III and IV more 

 sparse; metatarsi I and II with a few scopular hairs extending nearly 

 to base, III and IV without any. Scopular hairs very broad and 

 strongly clavate. Leg I with femur bearing two long spines in mid- 

 dorsal line (between middle and base and middle and distal end 

 respectively) and one on anterior surface between middle and distal 

 end; tibia with three pairs of ventral spines; metatarsus with one 

 subbasal pair. Leg II with spines same as those of I. Leg III with 

 femur bearing three spines along middorsal line, two on anterior side 

 and two on posterior side; patella with a spine on anterior and also 

 one on posterior surface ; tibia on ventral surface with a pair of spines 

 at distal end and two single ones in line more proximad, two on ante- 

 rior and two on posterior surface, and one subbasal one on dorsal 

 surface; metatarsus on ventral surface with a distal pair and three 

 (or four?) more proximal ones rather irregularly arranged, a spine at 

 distal end on each side and dorsally a median distal one, a submedian 

 pair and a single subbasal one. Leg IV with femur armed with three 

 spines along middorsal line, two on anterior side and one on posterior; 

 patella with a spine on anterior and one on posterior side; tibia with 

 two pairs of dorsal spines, the anterior spine of each pair much smaller 

 than the caudal one, ventrally with one distal pair, a submedian pair 

 and a single subbasal spine; metatarsus with two pairs of dorsal 

 spines, (between middle and base and middle and distal end respec- 

 tively), three on anterior side and two on posterior, on ventral surface 

 with two at distal end, one toward middle and one toward base. Claw 

 of leg I with seven long teeth, (Plate 12, fig. 7). 



Inferior spinnerets widely separated, more than their diameter 

 apart; spinning tubules very large, arranged in a semicircle. 



Spermatheca large, broadly fusiform, densely chitinized and dark 

 in color, showing distinctly through surface integument, the openings 

 small. The integument over the spermatheca in type is torn so that 

 its precise configuration cannot be made out, but its modifications 

 seem to be very slight, (Plate 12, fig. 8). 



Female. Length 6.2 mm. Length of cephalothorax 2.5 mm.; 

 width 2 mm. 



