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[Fasciolopsis buski]

Eggs of Fasciolopsis buski are broadly ellipsoidal, operculated and measure 130-150 µm long by 60-90 µm wide.  The eggs are unembryonated when passed in feces.  The eggs of F. buski can be difficult to distinguish from Fasciola hepatica, although the abopercular end of the latter often has a roughened or irregular area.

A	B

A, B:  Eggs of F. buski in a unstained wet mount.

C	D

C, D: Eggs of F. buski in unstained wet mounts.  Figure D taken at 200x magnification.

E

E:  Higher magnification (400x) of the egg in Figure D.