THE GENUS LEBERTIA. 495 



one pore in the distal third accompanied by a diminutive hair. 

 The extensor surface bulges out somewhat, and gives the im- 

 pression of a flattened arch. It has only one short hair midway 

 and two similar distal ones, one on each side. The fifth segment, 

 which is conical, ends in three claws, of which the back one is 

 smaller than the other two. The pores on the segments are not 

 large, but they are fairly evenly distributed right up to the distal 

 end of the fourth segment. 



The epimera are rather long in comparison to the breadth, 

 bat this may be due to the fact that the sides are rather drawn 

 in towards the body, so that the whole epimeral area has a 

 slightly arched appearance. Anteriorly the epimera extend well 

 beyond the body margin. The first pair of epimera extends 

 posteriorly to half-way between the capitulum and the genital 

 area. The posterior ends of the second pair are broadened out, 

 and the suture which separates them from the other pairs 

 extends well up and tends to draw in towards the first pair. 

 The suture between the third and fourth pairs goes well on 

 towards that of the second pair, so that the third has an almost 

 triangular appearance. The fourth pair also may be described 

 as three-sided, as the outer side sweeps round from the third 

 pair to the genital area. The posterior corner in one of the 

 specimens is rounded, in the other it is truncated. 



The first pair of legs measures 60 mm., the second pair 

 0*67 mm., the third pair 0*74 mm., and the fourth pair 0*87 mm. 

 At the base of each of the well-developed claws of the first 

 two pairs of legs there is a small claw-like process. The sixth 

 segment of the first pair of legs increases in thickness towards 

 the distal end, and is coarsely porose. The inner surface is 

 without hairs or spines. The fifth segment is similar in size 

 and shape to the foregoing, and has only one flattened spine 

 and two or three short hairs at the distal end. The fourth 

 segment, though somewhat similar, is rather stouter. The 

 third segment is shorter and stouter, with one flattened weakly 

 pectinate spine and three or four short ones distal. The sixth 

 segment of the second pair of legs is similar to that of the 

 first pair it is, however, a little longer and more slender. The 

 fifth segment is a little longer than the sixth, and has three 

 or four short spines and one or two short fine hairs at the 

 distal end. The fourth is proportionately longer and stronger 



