CONTENTS. Xlll 



CHAPTER XXVIII. 



SEBPULA AND SPIBOBBIS. 



Tubes and habits of Serpulae. Description of Spirorbis. 



p. 272-275 



CHAPTER XXIX. 



SABELLA. 



Habits of Sabetta akeolaria p. 276-279 



CHAPTER XXX. 



AMPHITEITE VENTLLABBUM "THE FAN AMPHITBITE." 



Amphitrite ventilabrum. Amphitrite Bombyx. Amphitrite in- 

 fundibulum. Amphitrite auricoma p. 280-287 



CHAPTER XXXI. 



TEEEBELLA LITTOBALIS, SBU ABENABIA " THE SAND MASON." 



Habits of Terebella mode of constructing its tube struc- 

 ture of tentacula elegant structure of branchiae their eggs 

 structure of embryo. Development of young Terebella 

 progressive growth. Terebella Jigulus, "the Potter." 

 Terebella conchilega, " the Shell-binder " its process of 

 tube-building. Terebella textrix, "the Weaver." Amphi- 

 trite ostrearia p. 288-306 



CHAPTER XXXH. 



NEBEIDES. 



Poetry fairly outdone by Nature. General structure of the 

 Nereids. Eunice gigantea. Habits of the Nereids. Defen- 

 sive and offensive weapons. Strangely-constructed mouth. 

 Their means of sensation. Remarkable mode of multipli- 

 cation. Nereis fulgem, "the Iridescent Nereis." Nereis 

 (Nephthys) margaritacea. Phyllodoce laminosa, " Laminated 



b 



