438 Mr. R. I. Pocock on new 



a long curved pvong, which surpasses the external lamina in 

 length, and a much shorter prong, the apex of which over- 

 hangs the base of the long prong. 



Loc. N.W. Borneo {A. Everett). Three male examples. 



Hojtlurorhachis Nosei, sp. n. (Fig. 13, p. 441.) 



Resembling the preceding in colour, but easily recognizable 

 by being more coarsely granular, having the pore closer to 

 the side margin (barely three diameters from it on the twelfth 

 segment), the anterior and posterior edges of the keels more 

 coarsely serrulate, the process at the base of the posterior side 

 more dentiform and less triangular, being narrower at the 

 base ; the tail broader, with the processes shorter, and the 

 infero-lateral tubercle on the anal segment much longer; and, 

 lastly, by the form of the copulatory feet, the ramus of this 

 organ being distinctly curved when viewed from the side and 

 terminating in two processes — an outer long curved prong, 

 the apex of which is bent at right angles, and an inner brancli, 

 which is subdivided into a laminate portion and a two-pronged 

 branch. 



Length 69 millim., width 13. 



Loc. Baram (Borneo). One example obtained by C. Hose. 



Genus Phractodesmus, Cook. 

 Ph}'actodes7nus, Cook, Brandtia, i. p. 1 (1896). 



Phractodesmus Ridleyi^ sp. n. 



5 . — Colour a uniform blackish brown, with a longitudinal 

 •white dorsal band (2-2-5 millim. broad) passing from behind 

 the border of the first tergite to the posterior border of the 

 nineteenth ; legs and antennas fuscous ; sterna and bases of 

 legs pale. 



Antennce longer than the width of the first segment, shorter 

 than that of the second. 



First tergite broadest along the anterior border, which is 

 straight and transverse ; the anterior angles not produced 

 forwards, but continuous wuth the anterior border. 



Dorsal surface of all the segments thickly granular, the 

 rows of tubercles distinct even on the first tergite; keels 

 depressed, their edges smooth, the anterior and lateral being 

 slightly thickened, the latter lobulate, the former basally 

 shouldered ; the anterior angles bluntly rounded, forming an 

 obtuse angle in the posterior half of the body, an acute one in 

 the anterior half; the posterior angle not rounded, square or 

 pointed, but not spiniform ; porous area large, a diameter or 



