Bull. U. S. F. C. 1 899 (To face page 304.) 
Plate 36. 
Distomu m appendiculatum from Paralichthys dentatus. 
25. Anterior end, lateral view, x 300. 
26. Ovary and vitelline glands of same, x 300. 
Distomum foecundum sp. nov.from Lopkolatilus chamsleonliceps. 
Va I( atera ' an( l ventral views, alcoholic specimen, x 5. 
28. Diagrammatic ventral view, restored trom sections, x 25. 
The voluminous uterine folds have been omitted. 
ex' , Left, and ex", right excretory vessel. 
a, Aperture of acetabulum. 
29. Transverse section through oral sucker, x 70. 
I 30. Details of same, x 250. 
31. Transverse section through acetabulum, about the middle ot the 
latter. The branches of the intestine contain granular fotca! 
matter. 
! 32. Transverse section between acetabulum and ovary, x 70. 
Im, Longitudinal muscles. 
33. Walls of excretory vessel near posterior end. x 25o. 
(See fig. 37. ) 
34. Walls of intestine at posterior end. x 250. 
(See fig. 37.) 
35. Ova. x 450. 
