STUDIES IN AUSTRALIAN ARANEILVE — RAINBOW. 



49 



Eyes. — Distributed in three series of 2, 4, 2. Of these those 

 comprising the median group of four are much the largest, and 

 are arranged in a somewhat trapezoidal form, the anterior pair 

 being separated from each other by a space equal to about twice 

 their individual diameter, and the posterior pair by about two- 

 and-a-half diameters ; each lateral pair of eyes is seated upon a 

 small tubercle, and occupies about the same general line as the 

 median group ; they are not contiguous. 



Legs. — Laterigrade, granulated, mottled with yellow and dark 

 brown ; femora of first and second pairs have each a groove on 

 their underside for the reception of the lower joints wherein they 

 rest when folded, like the blade of a pocket-knife ; the edges of 

 the grooves are armed with numerous short, sharp, strong tooth- 

 like spines ; the femora of the first pair are modified in form and 

 outline to accommodate those of the second pair when the legs 

 are folded and bunched up when the animal is at rest ; the femora 

 of the third pair is also grooved and has its ridges armed with 

 spine-like teeth, but the groove is not so deep, nor are the spines 

 so long as those of the first and second pairs ; each patella, tibia, 

 tarsus, and metatarsus are attenuated. Measurements (in 

 millimetres) : — 



Palpi. — Short, concolorous with the legs. 

 Falces. — Normal. 



Maxillce. — Short, broad, arched, apices divergent. 

 Labium. — Short, broad, arched. 



Sternum.— Elongate, somewhat shield-shaped, truncated in 

 front, mottled dark brown and yellow. 



Abdomen.— Overhanging base of cephalothorax, yellowish- 

 brown with patches of blue-black, and furnished with a few 

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