Geographic distribution. Korea, Japan and China
Life cycle. The second intermediate hosts are the perch, goby, shad (Clupanodon punctatus) and sweetfish (Plecoglossus altivelis). Domestic cats, ducks, and sea-gulls were reported to be the natural definitive hosts. Human infections were reported.
Morphology. The adult worms are elongate, 2.7-2.8 by 0.5-0.6 mm in body size. Ventral sucker is median, large, muscular, posterior to intestinal bifurcation, and 0.16-0.20 mm in diameter. Genital sucker is prominent and armed with 92-115 spines in a single row. Two testes are a little obliquely tandem and globular in shape near posterior one-third of body. Intrauterine eggs are small but broadly oval in shape with relatively thick shells, 24-28 by 16-19 mm in size.
Pathology and clinical symptoms. Refer to Metagonimus Species.
Diagnosis. Refer to Metagonimus Species.
Prevention. Refer to Metagonimus Species.
Treatment. Refer to Metagonimus Species.
Metacercaria of Heterophyopsis continua. Note the Y-shaped excretory bladder in black.
Heterophyopsis continua metacercaria from a goby, Acanthogobius flavimanus.
Metacercaria of H. continua from a sea perch, Lateolabrax japonicus.
Heterophyopsis continua, adult worm, recovered from experimental chick. 2.22 mm long by 0.27 mm wide. Acetocarmine stained.(Hong et al. 1990. Korean J Parasitol 28:53-62.)
H. continua collected from a cat. Semichon's acetocarmine stained.
Lateolabrax japonicus, the second intermediate host of Heterophyopsis continua.
Konosirus punctatus, dotted gizzard shad.
Lateolabrax japonicus, sea perch.