Bull. U. S. <F. C. 1899. (To face page 224.) 
Plate 24. 
17. From oar, September ‘20, large specimen, 35 mm. Natural size. 
18. From car, October 12, large specimen, 42 mm. Natural size. 
19. From car, October 25, largest specimen, 54 mm. Natural size. 
— - — car, July 20, large specimen, 9 mm. Natural size. 
14. From car, August 2, large specimen, 11 mm. Natural size. 
15. From car, August 18, large specimen, 18 mm. Natural size. 
10. From car, September 5, large specimen, 24 mm. Natural size. 
