ERRATA. 



The inclusion of the Hattock among the species figured 

 (viz. Plate viii.), was due to the wish of the author to illustrate 

 this species. 



It was afterwards found that no specimen of the Hattock 

 exists in any museum in this country, but this fact was 

 unfortunately not discovered till after the letterpress had been 

 printed off. 



Subscribers are, therefore, requested to make the following 

 a'terations in their copies : — 



On page 78 delete Plat€ VIIL 



81 for Plate IX. read Plate VIIL 



89 



94 

 102 



105 

 134 

 140 



160 

 169 

 178 

 188 



193 

 210 

 218 

 222 



X, 



XL 



XI L 



XIIL 



XIV. 



XV. 



XVL 



XVIL 



XVIIL 



XIX. 



XX. 



XXL 



XXIL 



XXIII. 



IX, 



X. 



XL 



XIL 



XIIL 



XIV, 



XV. 



XVL 



XVIL 



XVIIL 



XIX. 



XX. 



XXL 



XXIL 



