1901.] MYRIAPODA OF TIIE " SKEAT EXPEDITION"."' 525 



there is one conspicuous seta on the lower surface of each joint as 

 described in oatesii. 



Spirostreptus tittatus Tocock. (Plate XXX. figs. 27, 28.) 



The colour of this specimen differs from that described by 

 Pocock, especially in the legs, but the resemblances are so great 

 that I think it must be regarded as a variety only, and not as a 

 new species. I shall, however, give a fairly full description, as 

 the points of difference may seem more considerable to others than 

 they do to me. 



Length 220 mm. by 12| mm. Somites 85. 



Colour. Head castaneo-piceous. 1st tergite castaneo-piceous ; 

 antennae same. Other somites castaneo-piceous behind, paler, 

 almost ochraceous in front. Anal somite and valves the same 

 ochraceous colour, with the aual spike darker. Legs dark 

 castaneous, but lighter than the head. 



Head. Nearly smooth, slightly wrinkled below. Labial pores 

 six, somewhat irregularly placed. Frontal furrow terminating at 

 level of eyes. Eyes less than 60 but over 50, arranged in seven 

 transverse series. Space between eyes a little less than a 

 diameter. Antenna? reaching to end of 1st tergite ; second joint 

 the longest, the; two end-joints slightly shorter than the third and 

 fourth. Elevated striated ridge just below the edge of the 1st 

 tergite; where the frontal furrow joins this ridge, the ridge 

 projects a little to meet it and is cut away on each side of the 

 projection so that the margin of the ridge is sinuous in the middle 

 of the head. 



1st tergite. Large and smooth, narrowed laterally, both borders 

 being distinctly emarginate. The marginal sulcus extends to the 

 eye ; the anterior and posterior angles are rounded. It seems to 

 me that the posterior angle is a little more rounded than in 

 Pocock's figure. On the posterior edge there are three clear 

 stria? and two more indistinct. Other somites with the transverse 

 furrow very distinct, the portion of the somite behind it being 

 very slightly higher than in front. Pore just behind the sulcus, 

 the latter being sinuate at this point. The longitudinal stria 

 extend nearly but not quite up to the pore. Concentric markings 

 on the front part of the somite. Ventral grooves small and short. 

 Anal somite moderate in size, the projection coining to the level 

 of the valves but riot surpassing them. It is marked off from the 

 rest of the tergite by a distinct constriction. 



Legs long ; one seta above and one below the claw ; a few hairs 

 oil the lower surface of the joints. 



There are five immature specimens of Spirobolua from Q-unong 

 lnas, Perak. It is not possible to determine the species without 

 a greater knowledge than 1 possess. 



Julus iJiRMwi ra Pocock. 



Two specimens. I do not think either of them i^ Eull-grown. 

 Pboo. Zoql. Soc— l'jui, Vol. II. X". XXXV. 35 



