926 H. H. NEWMAN AND J. THOMAS PATTERSON 
Fig. 24 Dorsal view of the anterior ends of the litter of embryos from female no. 
125. The embryos all show a well marked crease in the middle of the scapular 
shield. The mother also had this same peculiarity. Note the double scute in the 
middle of the last row of the scapular shield of each of the two embryos lying on 
the right. These two embryos are members of one pair. X 2. 
