of larva of Antedon, [619]

Stomolophus, [325]

Stony Corals, [326]

Strain-figure of cell dividing by mitosis, [25], [26], [27]

Strained condition of cytoplasm during syngamy, [34]

Streaming of granules in protoplasm, [17]

Streptocaulus, [277]

Streptophiurae, [491], [494], [500], [502]

Strobila, [317]

Stromacystis, [596]