ORIBATOiPEA SINENSIS I 129 



pores, the anterior ones antero-median, the posterior ones 

 postero-lateral, two fine hairs at anterior edge of aperture 

 (only visible under special conditions) ; anal covers not 

 much larger than genital covers, more than their own length 

 from genital covers, strongly tapering anteriorly, aperture 

 with five well formed angles ; each with two pores or foramina 

 equidistant from median line ; a short - ' slit ' ' on each side 

 adjacent to lateral pores; other foramina as indicated in the 

 figure, in no case was it possible to see hairs arising from 

 any of the pores on the ventral plate. 



Camerostome inferior, short but broad at base, enclosed 

 by rostrum on three sides, the ventral plate not reaching 

 far anteriorly; hypostomal plate long, almost entirely 

 closing the camerostome (fig. 13) with two tiny hairs very 

 near tip ; mandibular area short ; palps wide and heavy at 

 base, slender distally, the proximal segment negligible, 

 second segment very broad, broadest in middle, with a long 

 lateral and a long ventral hair; third segment much nar- 

 rower, and nearly three times shorter than second, with a long 

 hair postero-dorso-laterally ; fourth segment about equal in 

 length to third, but narrower, cylmdric, with a long, dorso- 

 median hair; distal segment fairly cylindric, tapering distally 

 by steps, with many hairs all turned anteriorly (dorsally). 



Legs well developed; ungues tri-hetero-dactyle; tibia I 

 the broadest, genual III the shortest, femur II the longest, 

 coxa III the longest. Leg I (fig. 15) with at least three 

 plumose hairs on lower side of tarsus, six fine hairs about 

 distal end, two on outer side, four on dorsal side, the next 

 to the last from the joint decidedly incurved; tibia very wide 

 dorso-ventrally at distal end, with a plumose hair on lower 

 side, a hair on each side and a very long and strong one on 

 dorsal side, it being so long that when the animal has its 

 legs folded up under the pteromorphae this bristle projects 

 well beyond the cephalothorax, all these hairs are situated 

 on distal end of tarsus; genual with a hair on inside, one on 

 lower side and a long recurved one on top, all three situated 

 near distal end of article; femur large, wide and blade-like, 

 broadest in middle, with a hair anterior to widest part both 

 above and below and another one on upper side, distal end; 

 coxa small, negligible. Leg II (fig. 16) with three plumose 

 hairs on lower face of tarsus, about five fine ones about 

 distal end, three on dorsal side and two on side; tibia with 

 a plumose hair on lower side, a rough hair on each side and 

 a somewhat long bristle on upper side, all three situated on 

 distal end of article; genual with a single rough hair ventro- 

 distally and a long recurved bristle dorso-distally; femur 

 9 



