319] 



PROTEOCEPHALIDAE — LA RUE 



319 



EXPLANATION OF PLATES 



All original drawings, unless otherwise stated, were drawn with the 

 aid of the camera lucida or the Edinger drawing apparatus and details 

 have been filled in at the same magnification. Drawings are uniformly 

 arranged with the anterior end or the dorsal surface toward the upper 

 end of the plate unless there is a statement to the contrary. 



ABBREVIATIONS USED 



