1900.] 



XEW SPIDER FROM BORNEO. 



335 



under the metatarsus, forming a prehensile weapon when these 

 joints ai'e apposed. 



Ma^tjsatta trucidans, n. sp. (Fig. 1.) 



Female. Total length 4 mm. ; length of thorax 1| mm. ; length 

 oF abdomen 2| mm. Greatest breadth of thorax (about the level 

 of the second pair of legs) about 1 mm. ; of the abdomen about 

 •75 mm. 



Fie. 1. 



Mantisatta trucidans, £ , much enlarged. 



The cephalothorax is much depressed and is about half as long 

 again as broad. The first pair of eyes are very large, occupying 

 the whole breadth of the facies, and are mounted on short cylin- 

 ders which project forward. The second and third pairs of eyes 

 are on confluent dark-coloured eminences. The second eyes, which 

 are pale-coloured, are about a quarter of the anterior eyes in dia- 

 meter. The third eyes are very small and black. The fourth 

 pair of eyes, somewhat farther behind the third pair than these are 

 behind the second, are dark and moderately large, their diameter 

 being about one third of that of the anterior eyes. The whole 

 ocular area (fig. 2. p. 386) forms almost an exact square. 



The abrlomen is a depressed cylinder, more than three times as 

 long as broad. The spinnere's are not visible from above, being 

 hidden by a caudal process (fig. 3, p. 38'i). 



The anterior legs are about as long as the whole animal, the 

 femora, patellae, and tibia) being very strongly developed, and giving 



