47 
Fuj. 73.— Ventral view of Gastrodiscaij hominis, showing oral sucker, genital pore, sucking disk, and 
acetabulum. x2. (After Lewis & McConnell, 1876, jd. 3, fig. 2a.) 
Fig. 74. — Dorsal view of .same. x2. (After Lewis & McConnell, 1876. i>l. 3, tig. 2b.) 
Fig. 75. — The same. x2. (After Lewis & McConnell, 1876, pi. 3. tig. 2c.) 
Fig. 76. — Lateral view of .same. x2. (After Lewis & McConnell, 1876, pi. 3, tig. 2d.) 
Fig. 77. — Eggs of Gastrodiscus hominis. x65. (After Lewis & McConnell, 1876, pi. 3.) 
Fig. 78. — Gastrodiscus hominis, partially dissected to show the anatomy: ac., acetabulum; es., esoph- 
agus; ex. c., excretory canal; g. c., cerebral ganglion; g. }^., genital pore; i, intestinal ceca; m., mouth 
with oral sucker; ov., ovary; p. b., pharyngeal bulb; t., testicle; id., uterus, with eggs; va., vagina 
(metraterm); v. d., vas deferens; v. dt, vitelloduct; v. g., vitellogene gland; v. n., ventral nerve. 
Xl2. (After Lewis & McConnell, 1876, p. 185.) 
Fig. 79. — Dorsal view of the free embryo (miracidium) of the Conical Amphistome {Paramphistomum . 
cervi) about to enter the intermediate host: fl,, end portion of excretory system; g., germ cells; gg., 
matrix of germ cells; f. , rudimentary intestine; sn., nervous system. x285. (After Looss, 1896, pi. 12, 
fig. 125.) 
