chamberlin: HTRIOPODA Ol THE iustbalian region. 107 



arising well distad <>f the middle <>f the length instead of toward the 

 base; tin 1 ventral (posterior) branch expanded, spatulate, the semini- 

 ferous branch slender, styliform, arising from the dorsal face of the 

 ventral branch much higher up than the origin of the dorsal or anterior 

 branch which is straight and acute, resembling that in certain species 

 of Antichiropus. 

 Genotype. .1. divergent, sp. now 



297. A.USTRALODESMUS DIVERGEN8, Sp. nov. 



Type.— M. C. Z. 4,625. Queensland: Kuranda (W. M. Wheeler). 



The general color is dark chocolate-brown, without distinct markings; the 

 pleura] region darker than the dorsal. Legs testaceous, the antennae browner. 



Clypeal region pilose. Bead smooth, not uneven. Vertigial sulcus short. 

 Antennae long and slender, joints in the male in length measuring as follows: — 

 second, third and fourth, .6 mm., fifth, .48 mm., sixth, .4 mm., seventh, .2 mm. 



Surface of tergites smooth and shining. Each segment with transverse 

 sulcus deep; a much weaker median longitudinal sulcus. Keels of second 

 segment well below level of adjacent ones, narrow, somewhat concave above. 

 Other keels anteriorly strongly rounded, scarcely raised, the produced caudal 

 corner acute. Caudal of anal tergite extending widely beyond the valves, 

 nearly straight, narrowly truncate. 



The legs in general exceptionally long and slender, the last article increasing 

 markedly in length caudally. In the male the last joint and the distal half 

 of penult joint of legs of anterior region densely pilose, the branches thinning 

 out and disappearing caudad, first from the penult and then from the ultimate 

 article. First legs of the male shorter; third joint with a short conical tooth 

 at proximal end. 



The median vertical plate from anterior edge of the fifth sternite strongly 

 narrowed distad, distally subtruncate. 



The telopodite of male gonopods long, flattened; strongly narrowed just 

 beyond junction with coxa; near the beginning of the distal third of total 

 length a ventral branch of flattened, strongly clavate form arises, the main 

 blade continuing straight forward but narrowing to an acute point; the 

 ventral process is concave dorsally and near the middle of its length gives rise 

 above to the seminiferous branch which is styliform; the style extends first 

 obliquely cephalodorsad, then runs straight forward or distad to meet the 

 edge of the expanded ventral branch proper at which it curves dorsad to end 

 in a short acute point . 



Precise length not ascertainable; width, 2 mm. 



