egg capsule

This absence of symmetry is found in all sections which are cut parallel to the long axis of the egg-capsule.

The egg-capsule which is formed for them in their passage down the oviduct is perforated in Sepia by a micropylar aperture.

The whole of the above changes are completed while the embryo is still enclosed in the egg-capsule.

The cilia on the velum cause a rotation of the larva within the egg-capsule.

The young earthworms, though of very small size, are fully formed before they leave the egg-capsule.