106 KEVISTA CHILENA UE HISTOEIA NATURAL 
ded process bearing two long bristles. There is 1 long bristle 
at the insertion of the movable process. This process is very 
large, being fírst narrow and curved upwards and then much 
widened and curved downwards. It bears a row of long 
bristles at the ventral edge, a short, broad, and somewhat 
twisted spine at the tip, an irregular double row of bristles on 
the side and another row at the dorsal edge, the central bris- 
tles of this dorsal row being flattened and lanceolate. Tlie 
manubrium is widest at the apex. The ninth sternite is 
likewise very peculiar. The internal (= vertical) arm is 
broadened at the apex, this widened portion being excised in 
the usual way, The horizontal arm has an almost straight dor- 
sal margin, while the ventral margin is curved, being evenly 
rounded in the distal third and bearing here a number of 
bristles. This sternite has basally a lateral horizontal projec- 
tion crowned with a very dense brush of long thin bristles, 
which are curly at the end, and among which is one long thick 
bristle. Beyond the middle of the ventral margin there are 3 
short, hook-like spines, and before the apex a large and a 
small hooked spine, the large one apparently bifurcating at 
the apex. The tenth segment is long, the sternite bearing two 
long apical bristles on each side. 
Length: $ 3 mm. 
We have one J from Temuco, Chile, oft' Dromiciops aiistra- 
lis, collected by Mr. D S. Bullock in November 1906. 
