neu- Tropical and Southern Opiliones. 447 



spines ; femur slender, lightly arcuate, nearly two tliirJs 

 tjie length of the trunks tubercular above and below in its 

 proximal half ; patella proximally constricted, smooth, 

 witliout spines or tubercles, about two thirds the length of the 

 tibia ; tibia with its proximal extremity bent upwards at 

 right angles, hence the segment lies at right angles to the 

 patella, armed inferiorly with three pairs of long spines, 

 of ^\hic]l the distal are the shortest, and 1 short spine, varying 

 in position, between the bases of the four proximal spines; 

 tarsus bent at right angles to the tibia, oval, armed below 

 distally with 3 external and 4 internal spines, which decrease 

 in length towards the claw ; claw about as long as tarsus. 



Legs unarmed ; coxa of first and second with a few low 

 tubercles below ; some marginal tubercles on that of the 

 third ; tarsal segments of first leg with 10 or 11, of third and 

 fourth with 8 or 9 tubercles. 



(J. — Maiidible larger, with a few low tubercles on the 

 basal segment, the second elevated at its proximal extremity, 

 its tubercles larger. Tubercles on lower side of femur of 

 palp produced into stout subcylindrical spines. 



Measuremeyits in millimetres. — Total length 7 ; greatest 

 width 5*3 ; length of palp (including trochanter, but ex- 

 cluding claw) 10-11, its femur 4; second leg 17, third leg 16, 

 fourth leg 21, its femur 6. 



Loc. Hong Kong {J. C. Boioring) . 



This species apparently differs from the Malaysian species 

 referred by Thorell to Epedanus, which are unknown to mo, 

 in the geniculation of the palpi and the absence of spines iVoui 

 the patellar segment. 



Genus Plistobuxus, nov. 



Resembling Epedanus in the position, shape, and armature 

 of the ocular tubercle, the number and depth of the sulci of 

 the dorsal scute, the exposure of the spiracles, &c,, but 

 differing in the presence of a pair of long erect spines on the 

 second abdominal segment of the scute, the mandibles very 

 large and long, recalling those of Rhampsinitus amongst the 

 Phalangiidse, and the two distal segments of the palpi rotated 

 so as to fold in a horizontal plane with their lower surface 

 looking inwards ; also in the presence of spines on the femur 

 of the first leg. 



Plistohunus rapax, sp. n. (PI. XII. fig. 2.) 



Colour a uniform yellowish brown. 



Dorsal scute smooth, polished; ocular tubercle about the 



