NO. 2032. ROTATORIA OF WASiHINOTON AND VICINITY— MARRING. 405 



Plate 37. 



Fig. 1. Rousseletia comimlata, lateral view; page 393. 



2. Rousseletia comimlata, trophi, ventral view. 



3. Rousseletia comiculata, trophi, left lateral view. 



4. Sphyrias lofuana, lateral view; p. 400. 



5. Sphyrias lofuana, dorsal view. 



6. Sphyrias lofuana, trophi, left lateral view. 



7. Sphyrias lofuana, trophi, oblique frontal view. 



8. Sphyrias lofuana, trophi, ventral view, 



Pl.\te 38. 



Fig. 1. Diurella porcellus, lateral view; page 400. 



2. Tnchotria brevidactyla, lateral view; page 400. 



3. Asplanchnopus hyalinus, lateral vie-w; page 402. 



4. A-splandmopus hyalinus, trophi, ventral view. 



