1944] Millipeds 111 
posterior margin; on segment 19 these tubercles are flattened 
and elongated into a process considerably exceeding the tip of 
segment 20, as shown in figure 6, a , and hiding all but the lateral 
lobes of it from above, the groove between the two produced 
series of tubercles broad but shallow, the terminal sinus shal- 
low; posterior margin of segment 20 with six distinct lobes or 
crenations of which the median two are smaller than the two 
in either side; subapical cone with four long central setae and 
with two much shorter setae laterad of them on either side. 
Gonopods somewhat resembling those of I. morila Chamber- 
lin as shown in figure 6, b. 
