5 
Page. 
29. Portion of a grass stalk with three encapsulated cercarife of the common 
liver fluke 26 
30. Isolated encysted cercaria of the common liver fluke 26 
31. Drawing from a microscopic prex)aration showing a hemorrhage in the 
parenchyma of the liver caused by the common liver fluke 27 
32. Drawing from a microscopic preparation showing the glandular hyper- 
plasia of the mucosa of a gall duct caused by the common liver fluke. 27 
33. Drawing from a microscopic preparation showing a fluke in the tissue 
of the liver 28 
31. Limiuea {nincaiula, natural size and enlarged 28 
35. Liinnmi peregra, natural size and enlarged — 28 
36. Lirnnxa Jnimilis, natural size and enlarged 28 
37. Limnsea oahuensis, natural size and enlarged 29 
38. Limnxa viator, natural size and enlarged 29 
39. Lancet fluke ( D/croco?h‘u//< lanceatum), enlarged to show the anatomic 
characters 30 
40. Egg of lancet fluke with contained embryo 30 
41. Free embryo (miracidium) of the lancet fluke 30 
42. Eivolta’s original figure of Opisthorcliis felinem 31 
43. Ventral view of Opjisthorchis felineus from a cat 32 
44. ~Egg oi Opisthorchis felineus 32 
45. Ventral view of Opisthorcliis pseudofelineus from the cat 33 
46. Opisthorcliis noverca, natural size 34 
47. Ventral view of Opisthorcliis noverca, greatly enlarged to show the 
anatomy 34 
48. Eggs of Opisthorcliis noverca 34 
49-62. The Asiatic liver fluke, Opnsthorchis sinensis 
49. The Asiatic liver fluke, natural size 35 
50. The same, greatly enlarged to show the anatomy 35 
51-58. Eggs of same in different degrees of development 36 
59-60. Free embryos of same 36 
61. Section of left lobe of liver, showing lesions caused by Opisthorcliis 
sinensis 37 
62. Section of right lobe of liver, showing lesions caused by Opisthorcliis 
sinensis 38 
63-66. Busk’s intestinal fluke, Fasciolojms hiisldi 
63. Fasciolopsis busldi, natural size 39 
64. The same, enlarged to show the anatomy 40 
65. Sagittal section of cephalic end of same 41 
66. Dorsal view of that portion of the cirrus-pouch which lies caudally of 
the acetabulum 42 
67. Ventral view of FasciolojJsis rathouisi, enlarged to show the anatomy . . 43 
68-71. The Eg3'ptian intestinal fluke, Ffeterophyes heterophyes 
68. Ventral view, enlarged to show the anatomy 44 
69. A portion of the skin, showing the scale-like spines 45 
70. Chitinous rods of the genital ring 45 
71. Egg of Egyptian intestinal fluke 45 
72-78. The Asiatic amphistome, Gastrodiscus hominis 
72. A portion of human intestine slit open, with specimens of Gastrodiscus 
hominis 46 
73. Ventral view of the parasite, natural size 47 
74-75. Dorsal view of same .7 47 
