glochidium

基本解释

• 瓣钩幼虫,河蚌幼虫

同根派生

英汉例句

• Morphologies of glochidium and juvenile mussel were studied during parasitic metamorphosis development of Anodonta woodiana pacifica.
  摘要对圆背角无齿蚌的钩介幼虫寄生变态及稚贝发育过程进行了形态学观察和比较。
• After a period of growth, newly shells which were similar to adults came out near side of glochidium shells, which were degenerating as shell bottom gradually.
  稚贝经过一段时间的生长，从幼虫壳内侧长出一对新壳，形态逐渐趋向于成贝，而幼虫壳则逐渐退化为壳顶。
• Mature glochidium was only capable of switching by shells, while the newly metamorphosed juveniles were near identical to glochidium in size and shape except for the ability of movement by foot.
  刚脱落的稚贝外部形态与幼虫相似，但已经可以依靠斧足进行爬行，并逐渐开始滤食；