微孢子虫湿片镜检样本，斑马鱼

Photomicrograph of a section of skeletal muscles of a zebrafish squashed for an unstained wet mount. Pale areas in the dorsal skeletal muscles were observed at necropsy. The large clumps are xenomas filled with spores, and individual spores can be seen scattered in between the xenomas. Unstained wet mount; original magnification, 400×.