ABT. 9 MONIEZIA, A GENUS OP CESTODE WORMS TAYLOR 9 



EXPLANATION OF PLATES 

 Plate 1 



Figs. 1, 2, 3, 4. Examples of variation in head and neck of Moniczia expansa. 

 (All four are of the same magnification.) 

 5, 6. Two parts of one individual Moniezia expansa showing differ- 

 ent arrangements of testes. 



Plate 2 



Figs. 7, 8, 9. Three parts of one individual Moniezia expansa showing varying 

 arrangements of testes and scarcity of interproglottidal glands. 

 Only two glands are present in all the segments shown in 

 Figures 8 and 9, and in Figure 7 there are no glands at all. 

 10. One part of one individual Moniezia expansa showing a variation 

 _ in the number of interproglottidal glands present in different 

 parts of the strobila. 



Plate 3 



Figs. 11, 14. Two parts of one individual Moniezia expansa showing a varia- 

 tion in the number of interproglottidal glands present in differ- 

 ent parts of the strobila. 

 12, 15. Two parts of one individual Moniezia expansa showing a con- 

 siderable variation in the number of interproglottidal glands in 

 the two different parts of the strobila. 

 13. Part of one individual specimen of Moniezia planissima showing 

 various arrangements of testes. In Figure 24, the linear type of 

 interproglottidal gland is seen broken into various lengths, the 

 shortest of which might be mistaken for the saccular type of 

 gland. 



Plate 4 



Figs. 16, 17, 18. Three parts of one individual Moniezia expansa showing varia- 

 tion in the arrangement of the testes. 

 19. Parts of one individual specimen of Moniezia expansa showing 

 large numbers of interproglottidal glands. The individual 

 shown in Figures 10 and 11 is intermediate between these and 

 the worms shown in Figures 7, 8, 9, 15, 16, and 17. 



Plate 5 



Figs. 20, 21. Parts of two individual specimens of Moniezia planissima showing 

 the various arrangements of testes. In Figure 24 the linear type 

 of interproglottidal gland is seen broken into various lengths, the 

 shortest of which might be mistaken for the saccular type of 

 gland. • 



22, 24. Two parts of one individual Moniezia expansa showing variation 

 in the shape of the segments and a very crowded arrangement of 

 interproglottidal glands. 

 23. Parts of one individual specimen of Moniezia expansa showing 

 large numbers of interproglottidal glands. The individual 

 shown in Figures 10 and 11 is intermediate between these and 

 the worms shown in Figures 7, 8, 9, 15, 16, and 17. 

 All the figures of portions of strobila are of the same magnification 



o 



