Spores of <i>Pseudoloma neurophilia</i> in developing embryo of zebrafish, <i>Danio rerio</i>.

<p><b>A.</b> Aggregated spores (arrow) in a 4 hpf embryo. Bar = 0.5 mm. <b>B.</b> Two foci of spores (arrows) visible in the same embryo at 24 hpf. <b>C.</b> Spores (arrows) in the same embryo at 48 hpf. <b>D.</b> Differential interference contrast micrograph of spores from an embryo. Bar = 10 µm.