Quadrula
Quadrula is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae native to rivers of the American Midwest and mid-south. All have thick nacreous shells with well-developed hinge teeth, many also with external shell sculpturing of nodules or lumps.
网络释义
短语
Quadrula intermedia中间方蚌
Quadrula sparsa阿帕拉契山猴面珍珠贝;稀少方蚌
Unio scipta Quadrula scripta英文名称
专业释义
英英释义
英汉双解大词典