96 i;KCOKr>s ok the austkaliak .MUSEr.M. 



indistinctly granular. Pores as in A. niinboin'. Last segment 

 leathery or wrinkled towards the ajiex, which is truncate ; tlie 

 usual setee are not mounted on granules. 



Valves globular, smooth or scarcely wrinkled in the angles, 

 with shining, raised margins and a pair of setae on each side. 

 Anal sternite rounded with a pair of marginal setae. Ventral 

 plates unarmed, with some long fleecy hair inside the 

 base of the legs, and with distinct transverse and longitudinal 

 impressions. Pleuro-ventral ridges recognizable only on the 

 third and fourtli segments, simply swoUon on the following. 



Legs long ; as long in the posterior end of the body as in 

 the middle (tenth pair = 5.90 m/m ; thirty-first pair = 6 

 m/m), shortly pilose. Third joint distinctly longer than the 

 breadth of the corresponding sternite ; last joint shorter than 

 the third. 



Male : — The brush which adorns the ventral surface of the 

 tarsi of anterior legs is poorly furnished with setse and quickly 

 thins out after the seventh pair of legs. First pair thickened 

 and provided with a blunt tooth below the third joint (PI. 

 xiv., (f fig. 17 ^ .L rdi'iilioiri) ; claw rudimentary, rounded. 

 Between the coxa^ of the fourth pair of legs is to be seen a 

 conspicuous perpendicular, sub-quadrangular lamella (PI. xiv., 

 figs. 11 and 12), growing broader distally, the mai-gin of which 

 is somewhat sinuate with rounded angles; the anterior surface 

 is swollen and clothed with very short hairs, while the posterior 

 surface is naked and bears two shallow impressions. The 

 sternite of the sixth segment is hollowed to lodge the copulatory 

 appendages at rest, the excavation being shallow and without 

 definable limits. 



The coxal apertui'e of the gouopods has its anterior margin 

 feebly sinuate and without median angular plate ; its posterior 

 margin is destitute of any tooth-like pi'ocess, being simply 

 angular, the two coxal sockets thus communicating more 

 bi'oadly in the middle than in .1. niiiilmir,'. 



Coxa? of gonopods (1^1. xiv., figs. 9 and 10) protruding out 

 of the coxal aperture, nuire so than in any othei- species of the 

 genus ; telopodits also proportionally longer. (lonopods en- 

 tirely independent from one anothei-. Coxa longish, crooked 

 above the middle, with its anterior surface flattened in its 

 proximal half, adorned with numerous fleecy hairs in the distal 

 half. No marginal process. Hook thick at the base and 



