LIST OF ILLUSTRATIONS 



The Weymouth Anemone, Actinoloba Dianthus, and 

 THE contorted Tube-worm Serpula Contor- 

 tuplicata ..... Frontispiece 



FIG. PAGE 



I. A Portion of the Branching Tubular Growth 



FORMED BY RHABDOPLEURA NORMANI 



2. One of the Polyps of Rhabdopleura . 



3. A Piece of the White Branching Coral (Lopho 



helia prolifera) 



4. British Marine Worms or CHiETOPoos 



5. The Shell of the Heart-urchin (Spatangus pur 



pur,eus) with its Spines rubbed off 



6. British Sea-anemones 



7. A Common British Jelly-fish . 



8. A Common British Jelly-fish . 



g. The Larval or Young Form of Crustacea 

 AS "the Nauplius" . 



KNOWN 



10. The Common Ship's Barnacle, Lepas anatifera 



11. A Large British Sea-acorn, Balanus porcatus 



12. Two Stages in the Growth of the Common 



Barnacle from the Nauplius Stage 



13. The Picture of the "Goose Tree," copied from 



the First Edition of Gerard's "Herbal" 



xiii 



5 

 7 



9 



78 



8.0. 

 85 

 94 

 96 



los 

 109 

 no 



112 



123 



