腹节

雌性唾液腺很小，仅有两个位于前胸中的囊状腺体；而雄性唾液腺非常发达，由6根延伸到第6腹节的管状腺组成。

The female has only two small sac-like glands in the prothorax , while the male possesses six long tubular glands which extend into the sixth abdominal segment .

花脚蟳大眼幼体在第五腹节具有指状下缘，与其他三种明显不同。

The megalopa of S.serrata has dactyl lower margin on the fifth abdominal segment which is different from three other Scylla species .

绛色细胞由胚体1～8腹节的外胚层部分细胞发育而成。

Oenocytes derived from ectodermal cells of 1 to 8 abdomen .

并胸腹节具明显的四齿，侧齿大，中齿小；

Propodeum with four teeth , lateral teeth bigger and middle teeth smaller ;

寄生蜂幼虫多从寄主的1～3腹节钻出。

The parasitoid larva come out at the 1-3 ~ ( rd ) abdomen of host .

前后表皮突的长度不小于第Ⅶ腹节长的2倍；

The length of apophysis posterior and anterior not less than twice as long as segement eight .

雌蛹和雄蛹的鉴别可通过其外生殖器的特征识别，雄蛹最后一腹节上端生殖器明显突出。

The female pupa could be distinguished from the male ones by the characteristics of exterior paramera , where the upper end of last abdominal ganglia of male pupa protrudes clearly .

绒毛位于胚胎的外侧面，在哺乳动物称为腹节，表现出典型的环行运动，将化学物质引导到机体的左侧面。

Cilia on the outer surface of the embryo 's underside , an area called the ventral node in mammals , exhibit a characteristic twirling movement that wafts chemical messengers over to the left side .