appendage GRE

A jawlike appendage of an arthropod.

包括在节动物一族；小蜂科之蜂。

Petals 5, differing slightly in size, imbricate, sometimes unguiculate, free, keel without apical appendages.

瓣5，在尺寸方面不同稍，覆瓦状，有时具爪，离生，没有顶端附属物脊。

In hemicephalous larvae, the head and its appendages are reduced and partially retracted into the thorax.

半头型无足幼虫头退化，后端缩入胸，如双翅目大蚊及一些寄生性膜翅目幼虫。

The thorax and pleon bear a number of lateral appendages, including the gills, and the tail ends with a telson.

另一个古老特征是甲壳亚门动物叉足，这样足在化石中三叶虫就已经有了。