MSD Manual

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Ichthyophthirius multifiliis
Ichthyophthirius multifiliis

    Photomicrograph of Ichthyophthirius multifiliis. Note the horseshoe-shaped macronucleus, which is a characteristic of a mature trophont. Close examination of the edge of this organism shows numerous cilia. Unstained wet mount; original magnification, 100×.

Courtesy of Dr. Ruth Francis-Floyd.

In these topics
Parasitic Diseases of Fish