V M, 



Figure 6. 

 Skin of a typical snake, showing the back and sides, 

 covered with scales. 



The method of counting the scales across the body is 

 indicated (1, 2, 3, etc.). 



V M =» the vertebral row of scales. 

 L = the last row of scales. 

 V = commencenaent of the ventral shield. 



