512 MB, p. Q. SINCLAIR ON THE [DeC. 3, 



Platyrhacfs KELA.NTANIOUS, sp. iiov. (Plate XXX. figs. 19, 21, 

 24, 25, 31.) 



From Kuala, Aring, Kelautan tState. 



Length 80 mm., greatest breadth 12 ram. Length of antennse 

 8 mm.; space between antennae 1| mm. 





mtn. 



mm. 



Breadth of 1st tergite 



8 



Breadth of 16th tergite 11^ 



2nd „ 



11 



17th „ 10| 



3rd „ 



11 



18th „ 9 



4th „ 



12 



19th „ 7| 



5th „ 



12 





As may be seen from the measureraeuts, this Myriapod tapers 

 abruptly before and behind. 



Colour. The colour (in spirit) is very peculiar, being a reddish 

 brown, almost like brick-dust. In the ceutre of each prozonite 

 there is a thick, well-defined, longitudinal black line. This line 

 does not extend the whole length of the prozonite, but there is 

 anteriorly a narrow space free from black. In the tergum, 

 between the keels, the black spreads out into a sort of blotch, 

 extending from the base of one keel to the base of the other ; 

 leaving, however, the posterior pai-t of the keel almost free. The 

 legs and sterna are the same colour, but lighter. 



Bead rather narrow; the frontal furrow deep and wide, ex- 

 tending between the antennse. Upper lip indented in the middle 

 and armed with six bristles, each arising from a tubercle. Just 

 above the upper lip is a deep semicircular compression with four 

 setiferous tubercles on its up]>er edge. The whole head is rougli 

 and densely granular. The space between the antennse is narrow ; 

 the antennae are thickly covered with hair ; first two joints less 

 hairy and lighter in colour ; end joint blunt and smooth ; frontal 

 furrow extends back to margin of first tergite. 



1st. tergite. Anterior margin rounded, with ridge, along whicli 

 are arranged ten very distinct tubercles and more tubercles which 

 ai'e not distinct, but are mixed up with the smaller tubercles with 

 which the rest of the tergite is studded. Behind the ridge there 

 is a depression. The ridge is not carried round the lateral 

 edges. The posterior margin is furnished with twelve very distinct 

 tubercles. The margin is rather rounded-off, but there is an 

 approach to a straight line on the surface that goes to meet the 

 curve from the anterior margin in a blunt point. On the pro- 

 zonite between the first and second keels there is a thin black line 

 which extends from the posterior margin to the anterior. 



2nd tergite projects forward and downward. Points of keels 

 rounded. Sow of twelve distinct tubercles on hinder margin ; 

 two fairly distinct rows in front of hinder row. 



3rd tergite does not project so far forward and downward ; 

 lateral margin of this tergite straight, making an acute angle with 

 the anterior margin. Two rows of tubercles can be made out. 

 4:ih tergite, Posterior margin of the keel is distinct, making an 



