noun
Corbicula leana; a species of basket clam
Scientific name for a specific freshwater clam native to East Asia. Used in biological and culinary contexts.
真蜆は日本の川や湖で見られる小型の二枚貝です。
The Corbicula leana is a small bivalve found in rivers and lakes in Japan.
Refers to basket clams in general, while 真蜆 specifies the species Corbicula leana.
The kanji 真 (true/genuine) and 蜆 (basket clam) combine to denote a specific species of basket clam. The reading ましじみ is a straightforward kun'yomi compound.