shell gland

zoology a gland in certain invertebrates that secretes the components required for forming the shell of an egg

Words nearby shell gland

The shell-gland becomes fully developed opening at the base of the first pair of maxill.

The Works of Francis Maitland Balfour, Volume II (of 4) |Francis Maitland Balfour
In A the shell-gland and the mouth and the rudiment of the enteron are shown; primitive mesoderm cells.

Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 2 |Various
This pit, which has already been spoken of as the shell-gland, resembles very closely the shell-gland of other Mollusca.

The Works of Francis Maitland Balfour, Volume II (of 4) |Francis Maitland Balfour
In B the shell-gland has flattened out and the shell is formed.

Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 2 |Various

Its cells first become differentiated into mesoblast and hypoblast after the shell-gland has become a fairly deep pit.

The Works of Francis Maitland Balfour, Volume II (of 4) |Francis Maitland Balfour