Digenean metacercariae, gill, swordtail
Digenean metacercariae, gill, swordtail
Photomicrograph of gill tissue from a swordtail (Xiphophorus hellerii) infested with digenean metacercariae. A metacercaria can be seen in almost every primary gill filament. Unstained wet mount; original magnification, 40×.
Courtesy of Dr. Denise Petty.
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