Ameobocytes are modified into the following types -

a. Archaeocytes - Undifferentiated totipotent cells

b. Trophocytes - Food providing cells or nurse cells

c. Thesocytes - Food storing cells

d. Myocytes - Form a ring around the osculum and help in closing and opening of osculum

e. Chromocytes - Pigments and excretory substances storing cells

f. Phagocytes - Cells that will engulf excreta and damaged cells from food

g. Germ cells - Reproductive cells that form sperm and ova during breeding season

h. Gland cells - Secretory cells (secreting slimy substances)

i. Spongioblasts - Secrete spongin fibres (of the mesophyl layer)

j. Scleroblasts - Secrete spicules (calcoblasts in calcareous sponges and silicoblasts in silicious sponges)

k. Collencytes - Secrete Collagen and form endoskeleton