The relationship between the developmental stage of the embryo and the size of the egg was noticed and 'the function of the disintegrating dorsalorgan discussed.
本文还总结了胚胎发育时期与卵粒大小的关系，讨论了负子蝽背器官解体的作用。
2
The metathoracic accessory pulsatory organ is very small and has no direct channels connecting the dorsal vessel, but there is a pulsating membrane without muscle.