Imágenes de páginas
[blocks in formation]

1. A specimen of Alcyonella fungosa, represented of the natural size, as developed round a twig.

2. A portion of the surface magnified, with a polypide protruded; it is viewed obliquely, so as to show the papilliform termination of the cells.

3. The same, viewed perpendicularly; the polypides are all retracted, and the papilliform terminations of the cells foreshortened in the view.

4. A portion of the dead conccium magnified, and seen in vertical section; the cells towards the bottom are seen to be loaded with statoblasts.

5, 6. Statoblast, magnified about 60 diameters.

7. Longitudinal section through polypide and cell, showing anatomical details.

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