Nidamental gland



The nidamental gland is an internal organ found in some elasmobranchs and certain molluscs, including cephalopods (specifically Decapodiformes and nautiluses) and gastropods.

In cephalopods, the nidamental gland is a large glandular structure found in the mantle cavity. An accessory nidamental gland may also be present. Nidamental glands are composed of lamellae which secrete egg cases or the gelatinous substance comprising egg masses.