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한국의 장흡충류에 관한 연구 Ⅳ. 이형흡충과 Pygidiopsis 피낭유충의 국내분포 : Studies on Intestinal Trematodes in Korea IV. Geographical Distribution of Pygidiopsis and Heterophyes Metacercariae

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서병설; 홍서애; 채종일; 조승열

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서울대학교 의과대학
Seoul J Med, Vol.22 No.2, pp. 236-242
The family Heterophyidae Ohdner, 1914 is a
large group of small intestinal trematodes of 22
genera (Yamaguti, 1958). The type genus of
this family is Heterophyes Cobbold, 1886, which
has a characteristic sucker-like genital apparatus
called genital sucke r. Other morphological characteristics
of this family are the body surface
beset with scale-like spines and distinctive
genital apparatus of various shape , size and
location (Witenberg, 1928).
A few kinds of snail hosts are known as the
first intermediate hosts and some fresh water or
brackish water fishes play the roles of their
second intermediate hosts (Komiya, 1965). And
the final hosts are the avian and mammalian
vertebrates. These worms can be prevalent in
the areas where the 3 kinds of hosts are closely
related each other ecologically. And they distribute
world-widely, including Europe, Africa,
Asia and America (Yamaguti, 1958).
In Korea , Metagonimus yokogawai is the well
known one of these flukes. Its distribution, life
cycle and medical importance have been studied
by many workers up to present. However, the
distribution of Pygidiopsis (Chun, 1963) , Centrocestus
(Choi et al. , 1964), Stellaηtchasmus (Seo
et al. , 1979) and Heterophyes (Sea et al. , 1980)
had ever been recorded other than M. yokoga-
* This study was supported hy the grant from the
Alumni Association of College of Medicine, Seoul
National University, 1980.
-- 236 •
wai. Recently, Seo et al. (1981) detected the
human cases infected with Pygidiopsis and
Heterophyes for the first time in Korea.
To understand more precisely the source of
human infection, mode of transmission, geographical
distribution, etc. of Pygidiopsis and
Heterophyes , it is necessary to do some survey
on the metacercarial infection in the brackish
water fishes in Korea. For this purpose , the
brackish water fishes from 14 coastal areas were
examined for the heterophyid metacercariae.
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