ECTOPARASITIC TREMATODES. 295 



Fig. 22. Two gland cells from the posterior part of the body, x 389. 

 „ 23. Cross-section of the intestine, x 389. 



„ 24. Portion of a cross-section through the anterior part of the body, to show 

 the nnicous glands, x 389. 



Acanthocotyle Verrilli n. sp. 

 „ 25. The entire animal viewed from the ventral side, x 32. 

 „ 26. One of the chitinous corpuscles of the sucker, a baasl portion, b distal 

 portion. X 250. 



Microcotyle pomatomi n. sp. 

 „ 27. The entire animal viewed from the dorsal side, x 34. 



Microcotyle stenotomi n. sp. 

 „ 28. The entire animal viewed from the dorsal side, x 32, 



Microcotyle hiatulœ n. sp. 

 ,, 29. The entire animal viewed from the dorsal side, x 42. 



Microcotyle longicauda n. sp. 



„ 30. The entire animal viewed from the dorsal side, x 31. 

 „ 31. Atrial spines, x 146. 



