yuán cán
意思解释：（Yuan silkworm）即原蚕。第二次孵化的蚕。
两栖动物。长约13厘米～23厘米。背面黑褐色，有黄色斑纹和条纹，腹面灰色。头宽，眼小，舌大。生活于湿地。分布于墨西哥等地。幼体栖息于水中，有外鳃;成体无鳃。又称钝口螈。…
Amphibian. Grow about 13 centimeters of ～ 23 centimeters. The reverse side is black Brown, have maize fleck and streak, n gray. The head is wide, the key point is minor, the tongue is big. Live at wet ground. Distributinging Yumoxige and other places. In Yushui of the young perch, outside having, branchial; adult is not had branchial. Call blunt mouth Yuan again. ...
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