308 



IXDEX. 



Water-mites, eyes, 261. 



food of, 266. 



intestinal opening, 264. 



legs of, 265. 



literature, 273. 



markings of, 261. 



mouth of, 263. 



parasitic, 266. 



preserving and mounting, 273. 



propagation, 265. 



sexes, external differences of 

 the, 263. 



Water-mites, tracheal openings, 264. 



to examine, 262. 



ventral plates, 263. 



X. 



Xanthidinm, 75, 86. 



antilopceum, 87. 



armatum, 86. 



Zi/ynema, 103, 107. 

 insiffne, 107. 



THE END. 



