332 ME. STANLEY HIRST ON ARACHNIDA AND 



sulcus distinct on dorsal surface of anterior segments, but not descending below the 

 pore ; after the ninth segment it becomes obsolete both above and below the 

 pore, being represented only by a shallow impression. Longitudinal striae also only 

 present on anterior segments ; they are confined to the sides of the segments (below 

 the pore), and become progressively fewer in number and weaker posteriorly ; they 

 can be traced about as far back as the fifteenth segment. Scobina large, well 

 defined, and visible up to the 32nd or 33rd segments. Anal segment with a trans- 

 verse impression ; its posterior end is blunt and does not project beyond the valves, 

 the latter being smooth or with faint striations posteriorly. Number of segments 52. 

 Tarsi of anterior legs without any pad. Coxaj of legs of pairs 3-5 strongly produced, 

 and the other segments of these legs are swollen and prominent ventrally. (For 

 the structure of the copulatory legs, see te.\t-fig, 18.) 



Text-iisure 18, 



liJiinocricus grant!, sp. n. A. Posterior view of the copulatory feet. B. Posterior copulatory foot, 

 more greatly enlarged to show details of structure. 



Colour (typical specimen) black throughout ; the antennae and legs are as dark as 

 the body. 



Length about l.SO mm., greatest width 9'5 mm. 



Loc. Mimika River, South Dutch New Guinea; several specimens. 



Genus Trigoniulus Poc. 



Trigoniulus klossi, sp. n. (Text-fig. 19.) 



6 . Head smooth and shining, its longitudinal sulcus only visible for a short distance 

 above and below, the middle part having disappeared ; a little round impression or 

 puncture is present in the middle of the upper part of the sulcus. Eyes separated 

 from one another by an interval a little greater than the diameter of an eye, and each 

 composed of 42-44 ocelli. Antennae considerably longer than the head. First segment 



