Bull. U. S. F C. 1899 (To face page 304.) 
Plate 35. 
Distomum ocreatmn from Pollack i ax virens and Merluccius 
bilinear is. 
I 16- Anterior end, ventral view, from life, somewhat compressed. 
X 68. 
I 17. Posterior end of same specimen, ventral view, from life, some- 
what compressed, x 68. 
|| 18. Smaller specimen, from life, anterior view, x 100. 
j 10. Small specimen in glycerin, side view. 
20. Small specimen, from life, ventral view, x 100. 
21. Portion of excretory vessel with concretionary masses, from life. 
x 440. 
22. Single concretion, x 750. 
23. Ova. x 440. 
24. Alcoholic specimen, dorsal view, x 100. 
Nos. 16 to 23 from Merluccius bilinearis. 
No. 24 from Pollachius virens. 
