138 .bulletin: museum of comparative zoology. 



EXPLANATION OF PLATES. 



All drawings were made with the aid of a camera lucida. In the description of 

 each figure tlie final magnification is given. For Figure 1 a Bausch and Lomb 

 finch objective and one-inch ocular were used, giving a magnification of 188 diam- 

 eters. This was reduced ^ iu reproduction. Where a final magnification of 960 

 diameters is recorded it was produced by reducing h from drawings made with a 

 Leitz jV-inch objective and a Zeiss No. 8 ocular. A final magnification of 1280 diam- 

 eters was produced by a -J- reduction from drawings made in the same manner. 

 Final magnifications of 1310 and 1747 diameters were produced by a \ and \ reduc- 

 tion, respectively, of drawings made with a Zeiss ^g-incli objective and a Zeiss 

 No. 8 ocular. Figures having a final magnification of 900 diameters are reduced 

 \ from drawings made with a Bausch aud Lomb T Vmch objective and f -inch 

 ocular. 



All figures are made from preparations of Scolopendra heros except Figure 132, 

 which is of S. subspinipes. 



Abbreviations. 



adp. adiopose tissue. 



e'th. epithelium. 



chr'so. ace. accessory chromosome. 



