374 



5 th subequal in length, the 6 th longer, the 7 th conical and nearly as 

 long as the 2 nd . 



First tergite about twice as wide as the head, but much narrower 

 than the second, with its keels lightly depressed, their posterior bor- 

 ders directed obliquely forwards, and their anterior borders directed 

 slightly backwards to meet the posterior border in the lateral angle 

 which is very pointed, the anterior border weakly dentate, the posterior 

 border furnished with a row of about 7 elongate tubercular teeth; 

 the whole of the upper surface, including the keels, tubercular. The 

 keels of the rest of the somites very similar in form , depressed , about 

 twice as wide as long, narrowed distally, mostly at right angles to 

 the long axis of the body, although directed backwards towards the 

 hinder end of the body; the anterior border of each, straight, with 

 a small basal shoulder and unarmed; the anterior angle very convex 

 and armed with distinct sharp teeth, which become smaller upon 

 the lateral border; the posterior angle tooth-like and directed back- 

 wards , directed more and more strongly backwards towards the hinder 

 end of the body ; the posterior border furnished with a row of about 

 7 large elongate, rounded, equi-distant teeth, nearly straight at the 

 anterior end of the body but coming gradually lightly concave towards 

 the hinder end. The dorsal surface of each somite more or less hairy 

 and furnished with five irregular transverse rows of distinct tubercles; 

 on the keels the tubercles become reduced in size and number, there 

 being about two rows ; lower surface of the keels smooth. The lateral 

 surface of the somites thickly hairy. Caudal process triangular, poin- 

 ted, tubercular throughout, projecting posteriorly beyond the apex of 

 the keels of the 19 th . Anal sternite bitubercular. Sternal areas very 

 narrow, deeply grooved longitudinally. 



Length 16 mm.; width 4.8 • 



cf. Legs of the 6 th and 7 th somites widely separated , to make room 

 for the copulatory feet which are partially internal '). 



71. Cryptodesmus weberi, sp. n. PI. XXII, fig. 13 — 13c. 

 Java: Buitenzorg. Several specimens. 



1) Since this species will doubtless prove to be generically distinct from the following, 

 I propose the name Trichopeltis for it. 



