Note 202 — Chapter XVIII
Reading edition
There is considerable confusion about the shell-gland and antennary gland. In my account Willemoes Suhm has been followed. Claus however regards what I have called the antennary gland as the shell-gland, and states that it does not open into the antennæ till a later period. He does not clearly describe its opening, nor the organ which I have called the shell-gland.