LENGTH OF OOCYTES (MM) 
1964 ] 
Roth — Reproduction in Cockroaches 
205 
2 . 8 - 
0.4 : 
°0 5 10 15 20 25 30 35 40 45 50 55 60 
0.4 : 
°0 5 10 15 20 25 30 35 40 45 50 55 60 
DAYS AFTER OVIPOSITSON 
If small oothecae, and, consequently, less stretching of the uterus 
(principally lengthwise), were less effective than normal-sized egg 
cases in inhibiting the corpora allata, one would expect the oocytes 
to be larger at parturition. Since the small oothecae are considerably 
reduced in length, the results suggest that in N. cinerea: 1) trans- 
verse rather than longitudinal stretching of the uterus, and 2) the 
gradual increase in size of the uterine eggs, even in oothecae with 
