glochidium

From the first day to the third day, the dropping number and dropping rates of glochidium in the gills of Carassius auratus are 1.1, 0.8, 0.5 and 0.36, 0.27, 0.20;

在第1-3d，鲫鳃上钩介幼虫的脱落数量分别为1.1只，0.8只，0.5只，脱落率分别为0.36%，0.27%，0.20%；

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。

Morphologies of glochidium and juvenile mussel were studied during parasitic metamorphosis development of Anodonta woodiana pacifica.

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.