476 Mr. R. I. Pocock on the 



borders and straight anterior and posterior borders ; frontal 

 lamina not distinct ; prebasal lamina concealed by head-plate, 

 which slightly overlaps the anterior portion of the basal 

 lamina ; basal lamina very wide. 



Maxillary sternite large, considerably wider than it is long, 

 feebly cut out into teeth in its anterior middle line, furnished 

 with two patches of black colour in that region, and marked 

 on each side with a distinct sulcus, which runs parallel to the 

 long axis of the body from the middle of the joint of the 

 maxillary feet to the posterior margin of the sternite. Max- 

 illary feet, when closed, not reaching so far as the anterior 

 border of the head-plate ; coxee and claw not armed on the 

 inner side with teeth. Entire head hirsute. 



Tergites strongly bisulcate, portion within the sulci 

 slightly less smooth than the lateral portions. 



Sterm'tes oblong, not sulcate, and without conspicuous 

 porous areas. 



Anal tergite wider in front than behind ; pleurites small, 

 smooth, without pores ; sternite wide, laterally covering the 

 pleurse, with rounded lateral margins and straight posterior 

 margin. Anal legs hairy, very robust, proximal four seg- 

 ments compressed from side to side, but exceedingly thick 

 from above downwards, increasing progressively in length 

 towards the distal extremity ; the inferior margin of the 

 fourth segment behind produced into a small rounded process; 

 the fifth and sixth segments small, cylindrical, the iif'th arti- 

 culating only with the upper portion of the distal extremity 

 of the fourth ; the sixth armed with a claw. 



Anal pores woi visible. All legs hirsute. 



One specimen. 



II. DIPLOPODA. 

 Fam. PolydesmidsB. 



^Paradesmus gracilis (C. Koch). 



Fontaria gracilis, C. Koch, Syst. d. Mjr. p. 142 (1847) ; Die Myriop. 



ii. p. 51, fig. 173 (186.3). 

 Poli/desmus cvarctatus, Sauss. Mem. Mex. Myr. p. 39, pi. iii. fig. 18 



(18G0). 

 Paradesmus gracilis, Tcimosvarv, Termes. fiiz. iii. p. 246, pi. x. figs. 1-5 



(1879). 



Specimens of this species, which is tolerably commonly 

 distributed throughout the tropical parts of both hemispheres, 

 and has found its way into England and other European 

 countries in connexion with exotic plants, were taken by 

 Mr. G. F. Angas beneath a log in Dominica in 1883. 



