PLATE III 
Figure 1. Acrolepis letus, type specimen, right lateral aspect; natural size. 
Figure 2. Outer surface of upper flank scales of right side, toward the front, to show 
the general shape and the rugose sculpture; enlarged six times. 
Figure 3. Outer surface of scale from the same part of the fish; enlarged eight 
times. To show the minute nodes on the ridges traversing the scale from front 
to back it was found necessary to slightly emphasize them in the drawing. 
Figure 4. Inner surface of scale of left side; four times the natural size. This 
scale is separate from, and lies beneath, the specimen at a in figure 1. 
