8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



marginal ridge distinct. Anterior and posterior edges symmetrically 

 tapering laterad to the rounded ends. 



Paranota of segments 2-4 generally similar, paranota directed 

 slightly cephalolaterad, anterior and posterior corners broadly 

 rounded, lateral marginal swelling only slightly developed. Segments 

 5-15 similar, paranota more or less directly transverse, with peri- 

 tremata larger and more strongly defined; anterior corners rounded, 

 posterior corners subrectangular, becoming somewhat more acute on 

 more caudal segments. Paranota depressed, moderately interrupting 

 slope of dorsum, scapulorae entirely marginal, dorsal surface with 

 distinct coriaceous sculpture, each paranotum with distinct low ovoid 

 swelling within scapuloral arc. 



Peritremata distinct, broad, flattened, elevated above adjoining 

 surface of paranota; pores large and distinct, set near middle of 

 peritreme, opening dorsolaterad. Metatergites medially smooth, 

 becoming coriaceous towards paranotal bases; prozonites smooth, 

 slightly elevated above level of metatergites at middorsal region, but 

 the two subsegments meeting at a common level further laterad and 

 ventral. Posterior edges of paranota not margined. 



Tergites of segments 16-19 becoming narrower, with paranota 

 increasingly produced into acute angles, those of segment 19 forming 

 short bluntly rounded lobes about 0.9 mm in length; width of segment 

 19 between paranotal bases 2.3 mm. 



Epiproct of usual subtriangular outline, dorsally convex and 

 wrinkled transversely; ventrally concave; with usual two transverse 

 whorls of setae and four apical setae. Paraprocts slightly convex, 

 smooth except for few oblique grooves on outer basal quadrant, 

 mesial margins smooth and strongly elevated, setiferous discal tuber- 

 cule small and located close to midlength of mesial margin. Hypo- 

 proct broadly rounded, paramedian setiferous, tubercules small and 

 inconspicuous, median terminal projection not strongly developed. 



Sides of metazonites mostly smooth except for distinctive oblique 

 grooves extending caudoventrad toward legs from anterior end of 

 paranota. Caudal edge of metazonite set off by fine but distinct ele- 

 vated marginal ridge, preceded by a groove. Vertical low ridge above 

 posterior legs of each segment, sometimes provided with few vaguely 

 defined tubercules. Stricture broad, distinct, and well-defined down 

 sides, its surface finely granular in contrast to smooth glossy surface 

 of prozonite; structure narrowing to mere suture across sternal region, 

 but with prozonite definitely elevated and slightly overhanging suture 

 line. 



Sternal surface of metazonites distinctly but gradually elevated 

 behind stricture, forming thin, overhanging transverse ridge between 

 coxae of posterior pair of legs, usually medianly flattened or depressed; 



