EXPLANATION OF PLATE II. 
Fig. 1. Phyllobothrium thysanocephalum sp. noy. Head and part of neck of adult, nat- 
ural size, length of specimen 1 meter. 
Via. 2. Part of body of same, showing the beginning segments, enlarged 2 diam- 
eters. 
Vig. 3. Segments near posterior end of adult, enlarged 2 diameters. 
Tlic. 4. Mature free proglottis, enlarged 2 diameters. 
Fic. 5. Mature free proglottis, flattened under compressor, enlarged 4 diameters. 
lic. 6. Posterior segments of a specimen measuring 290™™ in length, enlarged 2 
g 2g 
diameters. 
Fig. 7. Head and neck of young specimen, enlarged 12 diameters. 
rig. 7a. Front view of rosteilam, enlarged 18 diameters. 
Fig. 7b. Side view of same, enlarged 18 diameters. 
Fig. 8. Young specimen, natural size. 
lic. 9. Transverse section through middle of head of a young specimen, length 58™™, 
enlarged 9 diameters. 
Fic. 10. Transverse section through anterior third of head of adult, enlarged 9 diam- 
eters, 
Fic. 11. Transverse section through neck a short distance back ef head, adult, en- 
larged 6 diameters. 
Fig. 12. Transverse section through neck of young, near the head, enlarged 9 diam- 
eters. \ 
Fic. 13. Spongiobothrium variabile gen. et sp. nov., outline of strobile with regular 
slender segments, enlarged 5 diameters. 
“Fic. 14. Outline of another specimen with shorter and more irregular segments, en- 
larged 6 diameters. 
Fig. 15. Side view of head, neck, and anterior segments, edges of bothria contracted, 
enlarged 10 diameters. } 
Fic. 16. Front view of head of another specimen, with two bothria expanded, en- 
larged 10 diameters. 
Fig. 17. Three mature segments, enlarged 5 diameters. 
Fia. 18. Median segment, enlarged 20 diameters. 
Fia. 19. Mature segment, enlarged 20 diameters. 
Figures 3, 4, 6, 7, 8, and 15 from life ; others from alcoholic and mounted specimens. 
All figures made by Mrs. Edwin Linton. 
502 : [50] 
