16 
lateral of the ventral acetabulum, on the side (right or left) of the median line oppo- ! 
site to the main portion of the uterus; receptaculnm seminis absent; Laurer’s canal ^ 
present; vitellaria enor- 
mously developed, ex- 
tending from anterior to 
posterior end of the Irody 
and located (as seen in 
cross section) on the pe- 
riphery, nsually leaving 
a longitudinal free sj^ace 
both in the dorsal and 
ventral median field. 
The transverse vitello- 
dncts pass cephalad of 
the testicles, hut caudad 
of ovary and uterus. 
Uterus may be only 
slightly developed, or 
may form a comjtara- 
tively large-sized rosette 
more than half as broad 
as the bodyt it may be 
located entirely on one 
side (right or left) of 
o I'lG. 11.— Sputum of man containing eggs of the lung flukes, greatly median line, or may ex- 
enlarged. (After Manson, 1900, p. -568, flg. SI.) tend both sides of median 
line, partially covering the ovary. Eggs rather large, about 80 to US f.i long by 
48 to 60 }.i broad. Embryo develops after oviposition. 
Habitat. — Encysted, usually two in each capsule, in lungs of mammals. 
Type species. — Paragonimus icestermanii (Kerbert, 1878). 
i 
i 
! 
I 
The Asiatic Lung Fluke— PARAGONIMUS Vv ESTERMANII « (Kerbert, 1878) 
Stiles & Hassall, igoo — of Man. 
[Figs. 5 to 16.] I 
Specific diagnosis. — Paragonimus: 8 to 16 mm. (after Kellicott 15 to 20 mm. ) long, 
4 to 8 mm. broad, 2 to 5 mm. thick; plump, pinkish to reddish-brown (alive) or 
slate (preserved) in color; live specimens are depressed and with variable outline; 1 
preserved specimens often oval to elongate pyriform, transverse section round or ^ 
nearly so, anterior end bluntly rounded, posterior end less lilunt. Oral sucker 0.53 
to nearly 0.75 mm. (Leuckart) or more (0.864 by 1.017 mm. or 1 to 1.4 mm.)& j 
(AVard); or 0.80 to 1.12 by 0.80 to 0.83 mm. (Stiles & Has.^all); 0.78 (Kerbert) in | 
« Synonyms. — Diploma v-estermanii Kerbert, 1878; Distorna ringeri Cobbold, 1880; ' 
Gregarina pulmonum Baelz, 1880; Gregarina fusca Baelz, 1880; Pistomum westermani j 
Kerbert, 1881; Distoma pulmonis Kiyona, Suga, and Yamagate (I 881 ); Disfornum ! 
jmlmonis Kiyona, Suga, and Yamagate (1881); Distoma jmlmonale Baelz, 1883; Distoma | 
La Clinica de Malaga, 1883; Distoma pulmonum (Baelz) Tomono Hidekata, ! 
1883; Distomci liepaticumilAmiP of Miura, 1889; Distomuni ringeri (Cobbold, 1880) [ 
von Linstow, 1889; Distomuni icestermanni Leuckart, 1889; Distomuni pulmonale 
(Baelz) Leuckart, 1889; Distomuni cerebrate Yamagiwa, 1890; Distoma ringers Rev. i 
Sci., 1890; Mesogonimus u-esternianni (Kerbert, 1878)” Railliet, 1890; Mesogonimus J 
pmlmonalis (Baelz, 1883) Railliet, 1890; Mesogonimus ringeri (Cobbold, 1880) Railliet, 
1890; Distoma icestermani (Kerbert, 1881) Weber, 1891; ‘^Distorna u'estermanni il 
(Leuckart) Blanchard, 1891; Mesogonimus pulmonale (Baelz, 1878)” Stossich, 1892; *4 
Distoma {Mesogonimus) westermanni Kerbert, 1878,” of Stiles, 1894; Distornum sp. '4 
of Kellicott, 1894; Distomi ringeri (Cobbold, 1880) Simon, 1897; Paragonimus wester- jfl 
manii (Kerbert, 1878) Stiles & Hassall, 1900. ; 
^ Suckers distorted, measurements not exact. — Ward. 1 
