EXPLANATION OF PLaTE XLIII. 
Fic. 6. Syndesus cornutius, lateral view, with last abdominal 
segment. 
6a. Syndesus cornutus, dorsal view. 
6b. - ». ; lateral view of median lobe. 
7. Systenus caraboides, dorsal view. 
7. : 5 , lateral view of median lobe. 
8. Lruecanus cervus, ventral-lateral view of median lobe. 
9, Sinodendron cylindricum, lateral view. 
9a. a ss , lateral view of median lobe and 
right lateral lobe. 
Descriptions on pp. 574-576. Explanation of the letters used 
uniformly on pp. 481-483. 
