of the Fishery Board for Scotland 72 



EXPLANATION OF THE PLATES. 



PLATE VII. 



CallicotyU qffinis, 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. Anterior end, ventral aspect (•§., anterior suckers), - - x 140 



PLATE VIII. 



Amphiptyches urna, 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 



