appendage GRE

A jawlike appendage of an arthropod.

节肢动一族；小蜂科之蜂。

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

花瓣5，尺寸方面不同稍，覆瓦状，有时具爪，离生，没有顶端附属。

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

半头型无足幼虫头部部分退化，后端缩入胸部，如双翅目大蚊及一些寄生性膜翅目幼虫。

The lacinate appendages of eupyrene sperm disappeared, and the sperm was surrounded by an envelope from top to tail.

真核精子片层外长全部消失，从头到尾被一层外套围。

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分叉足，这样足化石中三叶虫就已经有了。