C47 



I'Uit.' X. Fif^s. llL'-liilb.— Diepanidutaenia anatina and Drepani- 

 dotaenia sinuosa. 



[Figs. 112-115. Drepanidotaenia anatina.] 



Fig. 112. Cysticercoid with anter;or portion of the tail: rm.. 

 circular muscles; p., (third), parenchymatic layer; 

 h., fourth layer^neck; hr., posterior rostellum sac; 

 r., rostellum; ex., excretory system. After Schmidt, 

 1894, Taf. VI, Fig". A. 



Flg.113. C>-sticercoid with anterior portion of the tail; h., peri- 

 pheral layer; ku., cuticle; vU., muscular fibers; pchi., 

 paranchymatic layer; vl2., second layer of fibers; 

 pch2., internal paranchymatic layer (=^ neck) with 

 calcareous corpuscles (v); e., excretory apparatus; 

 pr., caudal appendage; j., nuclei of cells in the tail; 

 he, hooks of oncosphere. Zeiss 3. D. After Mrazek. 

 1891, Tab. VI, fig. 19. 



Fig. 114. Isolated young hook. After Mrazek, 1891. Tab. VI. 

 fig. 21. 



Fig. 115. Ten hooks taken from the outline of cyst of cysticer- 

 coid, showing the hooks in position on the rostellum. 

 After Mrazek, 1891, Tab. VI, fig. 22. 



[Figs. 116-"l24b. Drepanidotaenia sinuosa.) 



Fig. 116. A young worm, natural size. After Zeder, 1800, Tab. 



Ill, fig. 5. 

 Fig. in. Distal end of a young worm enlarged, a. b, two knobs. 



After Zeder, 1800, Tab. Ill, fig. 6. 

 Fig. 118. An adult worm, natural size. After Zeder, 1800, Tab. 



Ill, fig. 7. 

 Fig. 119. Short segments enlarged. After Zeder, 1800, Tab. Ill, 



fig. 8. 

 Fig. 120. Scolex enlarged: f, the long rostellum with hooks; c 



c, d d, suckers; a a, b b, neck. After Zeder. 1800, 



Tab. Ill, fig. 9. 

 Fig. 121. Two large segments, enlarged: a a, b b, the "vermi- 

 form sacs;" c c. cirri; d. posterior corners of the 



segments. After Zeder, ISOO, Tab. Ill, fig. 10. 

 f\g. 122. Isolated eggs, enlarged. After Zeder, 1800. Tab. III. 



fig. 11. 

 Fig. 123. Rostellum of Drep. sinuosa x240. After Krabhe, 1869, 



Tab. VII, flg. 151. 



