20 
Fig. 14 . — Dibothriocephalus cordatus from man. Natural size. (After Leuckart, 1886, 934, tig. 397.) 
Fig. 15. — Head and anterior portion of B. cordatus: a, lateral view; b, dorsal and ventral view. 
X 5. (After Leuckart, 1886, 931, tig. 394.) 
Fig. 16. — Transverse sections of head to show depth of suckers: a, in front of middle of head; b, back 
of middle of head, x ca. 10. (After Leuckart, 1886, 937, tig. 400.) 
Fig. 17. — Three segments of T>. cordatus: a, dorsal view; b, ventral view, x 2. (After Leuckart, 
1886, 934, fig. 399.) 
