1922] A New Javan Chilopod of the Genus Mecistocephalus 179 



sides a little concave. Caudal end of median piece straight and 

 weakly tridentate. Anterior margins of lateral pieces concave, 

 bending more strongly forward toward mesal ends. Caudomesal 

 angles of lateral pieces a little produced, their apices on a level 

 with caudal end of median piece. 



Prosternal teeth small and acute. The usual teeth present 

 on joints of prehensors, the distal one of femuroid being largest; 

 all oblique and rather slender though distally rounded. 



Sternal impressions not furcate anteriorly. 



Ventral plate of pregenital segment strongly narrowed 

 caudad, trapeziform. Coxal pores on each side small, moderate 

 in number. 



Pairs of legs, 49. 



Length, 20 mm. 



Cotypes in Museum of Comparative Zoology and in collec- 

 tion of The Federal Horticultural Board. 



