tube ca. 1 mm, faucal appendages low trapeziform, ca. 0.5 mm;
筒部约1毫米,喉属物低
梯形,约0.5毫米;
tube ca. 1 mm, faucal appendages low trapeziform, ca. 0.5 mm;
筒部约1毫米,喉属物低
梯形,约0.5毫米;
uropods Appendages on the side of the telson which make up the tail fan in crustaceans.
尾足肢侧边上组成尾部,在甲壳动物组成尾扇。
small freshwater branchiopod having a transparent body with many appendages;
身体透明并有许多肢
淡水小型鳃足动物;
Apodous larvae, which lack all trunk appendages, occur in various forms in many endopterygota orders.
双翅目、膜翅目细腰亚目、蚤目以
象甲等
幼虫
肢完全消失。
small freshwater branchiopod having a transparent body with many appendages; swims on its back.
身体透明并有许多肢
淡水小型鳃足动物;倒置游动。
The lacinate appendages of eupyrene sperm disappeared, and the sperm was surrounded by an envelope from top to tail.
真核精子片层外长物全部消失,从头到尾被一层外套包围。
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分叉
足,这样
足在化石中
三叶虫就已经有了。
chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles.
主要是海生环节动物,有两性,成对
肢上长有刚毛。
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