 As in the tissue of the lesser weever (Echiichthys vipera / "Trachinus vipera") supporting cells can be found in "T. draco" which develop from epidermal cells.These supporting cells form pockets inside the venom glands which are filled with differentiated glandular cells.The supporting cells most probably play a role in the cohesiveness of the venom gland and in the regeneration of the glandular cells.