One species of Myxosporidia (Sporozoa) was discovered from the testis of a toad Bufo regularis in the form of cysts. The cysts were 1-4X0.7-3.5mm. (average 2.5X2. 1mm). The cysts were filled with a fluid, containing mature spores which appears milky white to the naked eye. The spores were 9.4-10.6 X 9.2 u (average 10X9.1 H) with two equal polar capsules each measuring 3.5-4. 1X2.4-2.7 u (average 3. 8X2.6 (average 3. 8x2.6 u). The spores contained iodinophilous vacuoles within their sporoplasm. The morphological and histochemical studies were carried out on the cyst and spores.