photo B.E. Picton
various growth forms up to 30 cm long
branch showing star-shaped oscules, photo 5 cm high
photo B. Picton
from Sponge V
photo B. Picton, Sark, Channel Islands
Bowerbank's (1874) drawings
Bowerbank's (1874) drawings
drawing of type of Schmidt, 1862
drawing of skeleton of A. polypoides from Vosmaer, 1912
spicule drawing from MCS Sponge Guide V
SEM cross section of branch
light microscope longitudinal sections of branch