从通俗环毛蚓[Pheretimavulgaris（chen）]（沪地龙），中提取分离得到一白色结晶，经红外光谱鉴定为玻珀酸（Amberacid）；
A white crystal was extracted and separated from Pheretima vulgaris ( chen ), then identified to be succinic acid by infrared spectrum method .
通俗环毛蚓