CONTENTS. Xlll 



CHAPTER XXVin. 



SERPULA AND SPIRORBIS. 



Tubes and habits of Serpulse. Description of Spirorbis. 



p. 272-275 



CHAPTER XXIX. 



SABELLA. 



Habits of Sabella alveolaria p. 276-279 



CHAPTER XXX. 



AMPHITBITE VENTILABRUM " THE FAN AMPHITRITE." 



Amphitrite ventilabrum. Amphitrite Bombyx. Amphitrite in- 

 fundibulum. Amphitrite auricoma p. 280-287 



CHAPTER XXXI. 



TEREBELLA LITTORALIS, S6U ARENARIA " 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 XXXII. 



NEREIDES. 



Poetry fairly outdone by Nature. General structure of the 

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

 sive and offensive weapons. Strangely-constructed mouth. 

 -Their means of sensation. Remarkable mode of multipli- 

 cation. Nereis fulgens, "the Iridescent Nereis." Nereis 

 (Nephthys) margaritacea, Phyllodoce laminosa, " Laminated 



b 



