ANALYTICAL INDEX. 



315 



CHAPTER X.— continued. 

 Changes, 



Correspondence with other zoophytes, 

 Gestation long, 



Parent compressed in parturition, 

 Actinia taken in 1805, 

 Prolific specimens, 

 Progeny 334 in twenty years, 

 Progeny 200 in 14 days, 

 Disparities among the progeny, 

 Feeding promotes fertility, 

 Colour of Actiniae, 

 Parent shifts the embryo, 

 Period of parturition controlled, 

 Artificial birth, 

 Monstrosities, 



Monstrous actinia described, 

 Actinia surviving ten years, 

 Aged Actinia, 

 Plate XLV. explained, 

 Plate XLVI. figs. 1-5 explained, . 

 Plate XL VII. figs. 1-7 explained, 



page 210 



ib. 



211 



212 



213 



ib. 



ib. 



ib. 



ib. 



214 



ib. 



215 



ib. 



216 



217 



ib. 



218 



219 



ib. 



ib. 



ib. 



§ 2. Actinia cerasum, 

 Probably a variety, 

 Theories avoided, 

 Specimen taken in 1805, 

 Prolific specimen, 

 Monstrous young, 

 Its brood 60, 

 Its further brood 43, 

 Plate XLVI., 



ib. 

 ib. 

 220 

 ib. 

 221 

 ib. 

 222 

 ib. 

 ib. 



§ 3. Actinia gemmacea, 



The largest of the genus ? 



Numerous synonyms, 



Description, 



Colour varied, 



Adhesive power of the skin, 



Eversion of the stomach, 



Jets from the tentacula, 



Precautions, 



223 

 ib. 

 ib. 

 ib. 

 224 

 ib. 

 ib. 

 225 

 ib. 



