46 
^^Synoxyms . — Amphistoma /iomua’.s Lewis & McConnell, 1876; Amphistomum hominis 
(Lewis & McConnell) Davaine, 1877; Gastrodiscus hominis (Lewis & McConnell) 
Fischoeder, 1901. 
Bibliography. — For the cases thus far reported see Lewis & McConnell (1876, pp. 
182-186), Dobson (1893a, 18936), and Giles (1892, 1893). Judging from the writings 
of Dobson and Giles, this parasite seems to be much more common in India than is 
generally supposed. 
The Asiatic Amphistome — GASTRODISCUS HOMINIS« (Lewis & McConnell, 
1876) Fischoeder, igoi — of Man. 
[Figs. 72 to 78.] 
Specific diagnosis. — Gastrodiscus: 5 to 8 mm. long, 3 to 1 mm. broad; reddish in 
color (fresh specimen). Genital pmre about in middle of the anterior portion at 
Fig. 72.— a portion ot human intestine slit open, with specimens of Gastrodiscus hominis. Natural 
size. (After Lewis & McConnell, 1876, pi. 3, fig. 1.) 
bifurcation of the intestine. Testicles 2, lobate; vas deferens yery sinuous. Disk 
without papillie. Eggs oyal, 150 p by 72 p with ojierculum. 
Habitat. — Cecum and colon of man {Homo sapiens). 
Geographic distribution. — Asia. 
