Bull. U. S. F. C. 1899. (To face page 492.) 
Plate III. 
L 
14. Ascaris roUmdata Rudolphi, from Raja erinaeea. Side view of 
head, x 300. 
15. Another view of same. X 400. 
16. Front view of different, specimen from above, x 400. 
17. Posterior end of female, x 65. 
18. Posterior end of male, x 65. 
19. Asraris brevicapitata sp. nov., from Galeocenlo tignnus. Ventral 
view of head, x 300. 
20. Upper lip of same. X 300. 
21. Side view of posterior end. x 300. 
22. Diagram showing arrangement of anal pa pi Mm so lar as couia De 
made out. , , T 
23. Ascaris linstowi sp. nov. Male and female from Nematonurus 
goodei. x 2. 
24. Ventral view of head of female. X 100. 
25! Diagram showing arrangement of anal papillae. 
