xii CONTENTS. 



Zoophytes, classification of, by Fleming, - - Page 68 — 71 



Latreille, - - - - 71 



Rapp, - _ - 72 



Blainville, - 73—75 



Zoophytes, their division into four orders, - 75 76 



Zoophyta Hydroida, definition of, - - 81 



general observations on - 81 — 91 



their Families and Genera, - 91 — 92 



Family Hydraidae, - 93—108 



Tubulariadae, - 109—118 



Sertulariadae, - 119—159 



Asteroida, definition of, - - 1^3 



general observations on - 163 — 174 



their Families and Genera, - I '* 



Family Pennatulidae, - 175 — 181 



Gorgoniadae, - 182 — 186 



Alcyonida?, - 187—192 



Helianthoida, definition of, - - 195 



general observations on - 195 — 204 



their Families and Genera, - 205 



Family Madrephylliasa, - 206—209 



Actiniidae, - 210—234 



Ascidioida, definition of, - " 237 



general observations on - 237 — 246 



their Families and Genera, - 247 — 248 



Family Vesiculariadse, - 249—259 



Crisiadae, - 260—266 



Tubuliporidae, - 267—272 



Celleporidae, - 273—282 



Escharidce, - - 283—299 



Alcyonidulae, - - 300—307 



Limniades, - - 308 — 324 



Note on the sexes of Zoophytes, - - 325 



the anatomy of the Hydra, - - 326 



the cells of the Escharidoe, - - 327 



