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. 2012 Nov 26;50(4):317–325. doi: 10.3347/kjp.2012.50.4.317

Fig. 2.

Fig. 2

FBT metacercariae detected in fish hosts from Hanoi and Nam Dinh Province, Vietnam. A) P. varium metacercaria; elliptical and 187×147 µm in average size, having yellowish-brown pigment granules, a pair of eyespots, a muscular oral sucker (OS) and a submedian ventral sucker (VS), a thick-walled expulser, and a D-shaped excretory bladder (EB) with grouped granules. Scale bar=50 µm. B) S. falcatus metacercaria; elliptical and 297×232 µm in average size, having yellowish-brown pigment granules, a muscular oral sucker (OS), and a submedian ventral sucker (VS), a thick-walled expulser (E), and a V-shaped excretory bladder (EB). Scale bar=50 µm. C) H. continua metacercaria; round with relatively thick cyst wall and 458×453 µm in average size, having brownish pigments scattered all over the body, a muscular oral sucker (OS) and a ventral sucker (VS) located median, a genital sucker located just behind the ventral sucker, and a Y-shaped excretory bladder (EB). Scale bar=100 µm.