MYRIOPODA FROM I5UKMA 811 



19. Orthomoi'plia coxisternis, sp. n. 



(Fig. 12). 



9 . Colour piceous, the posterior border of eacli somite obscu- 

 rely ferruginous, the l^eels flavous, the legs and tiie base of 

 the antennae ochraceous. 



Body slender. Head smooth above, with frontal sulcus, hairy 

 below. Antennae thickish, not incrassate, of medium length, seg- 

 ments 2-6 subequal. P^ tergile convex from angle to angle, the 

 angle being only very slightly raised, the anterior border convex 

 from angle to angle, the posterior straight; keel of the 2""^ 

 large, horizontal, below the angle of the P* and the keel of 

 the S'"*^, produced behind and in front; the keels of the 2"'' and 

 S'"^ rounded in front, sliarp and slightly produced behind. Keels 

 of the rest above the middle of the sides, small , with anterior 

 border and anterior angle scarcely distinguishable, obtusely con- 

 vex, the margin of the non-poriferous keels very slightly and 

 evenly thickened, the others more thickened around the pore; 

 the posterior angles produced and acute on all the somites, but 

 less strongly in front than behind. Dorsal surface smooth and 

 shining; a strong transverse groove beginning on the S*"* and 

 reaching to the 18"'. Anterior constriction very strong but very 

 lightly sculptured. Lateral surface thickly granular ; inferior keel 

 or crest only present on segments 2-4 ; tracheal tubercles very 

 prominent. Sternal surfaces not spined, transversely and longi- 

 tudinally grooved, the last deeply notched behind, so that its 

 two halves appear like extra coxae. Anal sternite normal in 

 form , with small tubercles. Caudal process normal. 



Legs hairy, with claws conspicuous; on the 15"' somite the 

 femur and tarsus are about equal in length and about twice the 

 length of the trochanter or tibia. 



Length about 29 mm., width 2.8. 



A single female example collected by Sig. L. Fea at Bhamo. 



