The acid phosphatase (ACP) in the blood cells of oncomelania hupensis was observed at the light microscope level by the burstone stained technique.

• 结果在钉螺血淋巴细胞中的伸展性阿米巴细胞胞浆中可见呈棕色颗粒的ACP阳性反应物,而圆形阿米巴细胞胞浆中未见呈棕色颗粒的ACP阳性反应物。