MYRIOPODA FROM BURMA 803 



deep and reaching from keel to keel, present on segments 1-5 

 as well as on the rest, keel of the 2"'^ low as in Slrongylosoma, 

 tail and anal sternite as in that genus. 



Legs long and slender, femur more than twice as long as 

 the trochanter, noticeaI)ly longer than the tarsus and about 

 twice as long as the tibia, which is only a little shorter than 

 the tarsus. 



Sterna from the 8"' to the 17"' furnished with 4 tubercles, 

 or 1 at the base of each leg, posteriorly these tubercles gradually 

 increase in size until from the 14"' to the 17"' they have the 

 form of long backwardly directed spines. 



12. Tetraeentrosternus sixlbspinosus , sp. n. 



(Fig. 9-9a). 



Colour head, antennae and body piceous, the keels ochraceous; 

 legs and sterna testaceous, the former brunneous distally. 



Head smooth above with frontal sulcus. Antennae long, S""'' 

 segment the longest, nearly twice as long as the 6"' vvhich is 

 rather strongly incrassate. 



P^' tergile very convex above, swollen, the anterior border 

 evenly rounded from posterior angle to posterior angle, the 

 posterior angle not produced but subcarinate. 2"*^ tergile with its 

 keel below the level of the angle of the first and the keel of 

 the third, the keel produced anteriorly ; keels of the S''*^ and 4"' 

 rounded in front, subrectangular behind. Keels of the rest rising 

 just above the middle, small, very narrow, with the anterior 

 border and angle scarcely developed, the posterior angle sharp, 

 rectangular or at the posterior end of the body slightly produced 

 and very shortly spiniform. The dorsal surface very convex, all 

 the tergites, including the 1^* but not the last two, with a 

 strong mesially sinuate transverse sulcus, mostly smooth, but 

 in parts lightly striolate, the anterior furrow striate. The lateral 

 surface at most sub-granular; inferior keels absent, except on 

 the very anterior somites The sterna not longitudinally sulcate, 

 with a transverse sulcus. Anal sternite and caudal process normal. 



