1901. J MYRIAPODA OF THE " SKEAT EXPEDITION." 513 



obtuse angle with the lateral margin, which makes an acute angle 

 with the anterior. There is only one row of tubercles. 



5tli tergite. First trace of shoulder ; keel almost carries on the 

 slope of the tergum. The keel starts from very high up, so that 

 the whole surface makes a very gentle curve. 



StJi tergite. The anterior angle is acute, in the next somite it is 

 obtuse. The little teeth on the posterior margins of keels are 

 visible on the 9th somite. Ou the last two somites the posterior 

 margin of the tergite is elevated into a ridge. The anal tergite 

 shows little trace of the longitudinal ridges so conspicuous in some 

 other species, its margin is also little lobed. The anal valves are 

 very flat, and are provided with the usual setiferous tubercles. 

 The sterna are coriaceous and without furrows. The posterior 

 keels are very slightly bilobed. 



Platyiiiiaous : var. of icblantanictjs. (Plate XXXI. figs. 32-34, 

 42, 56.) 



Prom Bukit Jala, Jala District. 



Length 83 mm. Length of antennae 10 mm. ; space between 

 bases of antennae a little over 1 mm. 



mm. j mm, 



Breadth of 1st termite 7 Breadth of 8th tergite 12.i 



2nd 





lOi 



3rd 





11^ 



4th 





12 



5th 





12 



6th 





121 



7th 





121 



13th 





12 



14th 





HI 



16th 





11" 



17th 





10 



18th 





9 



19th 





8 



Ooloar dark chocolate-brown, with broad longitudinal pale stripe 

 along centre of back, including prozonites and extending on to 

 first tergite. Keels pale, legs pale, sternites rather darker than 

 legs, edge of anal plate and antennas pale. 



Head rather narrow ; space between antennae very narrow. 

 Upper lip indented in the middle and armed with five bxustles. A 

 depression between the antennae. A deep semicircular pit just 

 above the upper lip, wiVa four bristles along the edges. The 

 frontal furrow does not come to the level of the antennae. The 

 antennae are long, darker in colour near the end, and densely 

 covered with short hairs, less densely at the 1st and 2nd joints. 

 Surface of head covered with small tubercles. Prontal furrow- 

 comes to edge of first tergite. 



1st tergite. Anterior edge straight with ridge followed by furrow, 

 the ridge bearing twelve tubercles ^^■hich do not extend to the 

 angle of the tei*gite. The posterior margin is straight and bears ten 

 tubercles ; the margins both anterior and posterior are rounded- 

 oft at the sides to meet in a rounded angle. The width of the 

 tergite is considerably greater than that of the head. 



2nd tergite. Keels widely open, almost semicircular, ends 

 projecting forward and downward, ends of keels rounded ; two 

 rows of tubercles distinct. 



