72 



Part III. — Tiventy-eighih Annual Report 



EXPLANATION OF THE PLATES. 



PLATE VII. 



Callicotyle ajfinis, T. Scott. • 

 Fig. 1. Underside of specimen to show posterior sucker, - - x 17 



Octobothrium leptogaster, Leuckart. 



Fig. 2. Adult specimen, .... - - x 5 



Fig. 3. Anterior end, ventral aspect, - - - - - x 20 



(en. , mouth : ph. , pharynx ; gp. , genital aperture ; vg. , vitelline gland. ) 



Fig. 4. Posterior end, ventral aspect, - - - - - x 30 



Fig. 5. Three of the eggs removed, - - - - - x 105 



Axine bellones, Abildgaard. 



Fig. 6. Adult specimen, ventral aspect, - - - * - x 20 



Fig. 6a. One of the posterior suckers, - - - - - x 140 



Fig. 7. ^Interior end, ventral aspect (*•., anterior suckers), - - x 140 



PLATE VIII. 



Amphiptyches uma, Gr. and W. 



Fig. 1. Specimen seen from above, . - - - x 4*5 



Fig. 2. Specimen seen from the side, - - - - x 2 3 



Fig. 3. Another specimen, seen from above, - - x 2 3 



Fig. 4. A small (young ?) specimen, - - - • ■ x 2*3 



