MYRIOPODA FROM BURMA 829 



37. F*rion.opeltis pla,iia.tus, sp. n. 



(Fig. 21). 



Colour piceous, keels, tubercles, legs, distal segments of an- 

 tennae, sternal surface, labral region and anal segment te- 

 staceous. 



Antennae long; slender, slightly incrassate, reaching to about 

 the 5"" tergite ; the 2'^'' segment distinctly longer than the 5"'. 

 Keels situated nearly at the summit of the sides and almost 

 horizontal; those of the P* tergite well developed and as high 

 as the succeeding, with sharp postero-lateral angles; this tergite 

 marked posteriorly with a row of four tubercles arranged along 

 the hind border. The rest of the segments finely and closely 

 granular above, transversely sulcate, with a median transverse 

 row of four erect piliferous, rounded tubercles in front of the 

 sulcus, and a posterior marginal row of four similar but more 

 closely set, more conical tooth-like tubercles behind it, this ar- 

 mature less developed at the anterior than at the posterior end 

 of the body; heels strongly produced behind into a long, sharp 

 tooth-like process, the antero-lateral border very convex and 

 reduced to a minimum towards the hinder end of the l)ody; 

 margins of the keels bidentate , the posterior tooth marking in 

 front the groove containing the ]3ore; lateral surface of the seg- 

 ments beneath the keels finely and closely granular; no infero- 

 lateral keels. Sterna deeply sulcate transversely. Anal tergile and 

 sternile as in typical Strong ylosoma. Legs very long; trochanter 

 twice as long as coxa, iialf as long as femur, about as long as 

 patella but shorter than tibia. 



c/". Copulatorg feet with distal segment c\lindrical, elongate, 

 dividing at its free end into two processes, an upper long, 

 slender, hook-like, a lower short and blunt, attached to the lower 

 and perhaps not distinct from it is a second stout apically bifid 

 piece directed upwards and backwards on the inner side of the 



