JOURNAL OF ENTOMOLOGY AND ZOOLOGY 41 
Figure 1. 
Figure 2. 
Figure 3. 
Figure 4. 
Head and upper thorax of Aphorwra montis from above. ‘This figure 
is to show the position of the supra- and subesophageal ganglia. The 
small frontal ganglion is shown with its arched nerves. On the left 
side the postantennal organ is shown with the location of the sensory 
cells connected with it. Only a little of the labral nerve is shown. X 
about 100. 
Side view of the entire central nervous system of Aphorura, compiled 
from longitudinal sections. The smaller ganglia and the chief nerves 
of the two large head centers are shown in the drawing. X100. 
Median longitudinal section of the last thoracic and abdominal ganglia. 
The ventral side is up, the head end is at the left. X450. 
Cross section of the head ganglia. The dorsal side is up. The esophagus 
is between the two ganglia and a branch from the frontal ganglion is on 
the dorsal side of the esophagus. The section is taken just back of the 
connectives. X450. 
