102 PROSTOMIS SCHLEGELII. 



they are of a pale straw colour , with the alimentary 

 canal shining through. The only discrepancies, with the 

 exception of size , I can find between Curtis' figure and 

 description of P. inandihularis and these specimens, are , 

 that whilst in the former the mandibles are narrowed to- 

 wards the tip and the margins of the apical segment of 

 the abdomen appear tuberculate when greatly magnified , 

 in the latter the mandibles are strong and of almost equal 

 width throughout their length , and the entire apical half 

 as well .IS the sides of the terminal segment of the ab- 

 domen are distinctly and moderately strongly tuberculate. 



London, March 1884. 



Notes from the Leyden IMu-seiina, "Vol. VI. 



