INDEX TO THE PLATES. 



Several errors having crept in relating to the figures, the reader is requested to correct 

 such as may occur by the following revised list. 



Plate. Figs. page. 



1 I §• 2 Different appearances of Coryne Squamata .... 11 



3 Hermia glandulosa, magnified and of the natural size . 12 



2 1 Tubularia indivisa; 2 its polype 13 



3 The polype of Tubularia larnyx ........ 13 



3 . Part of a fine specimen of Thoa halecina 15 



4 . Thuiaria articulata, of the natural size and magnified £ ^ 



to show the cells and ovarian vesicles . . . . i z ° 



5 . Thuiaria thuia in different stages of growth and a ? 



portion magnified £ ^' 



6 . Sertularia nigra, natural size and magnified, laden 



with ovarian vesicles 



7 . Showing different modes of growth of Antennnlaria . 



antennina, &c £ * 9 



8 . Plumularia cristata in two forms of growth, with a ? 



magnified view of the cells and ovarian vesicle . £ - 



9 * Plumularia myriophyllum 30 



10 I Laomedea geniculata of the natural size and magnified,"} 



showing the cells and their polypes, with ovarian/ 0 

 vesicles, and near the lower part a diagram showing f 

 the funnel shaped opening in newly formed cells . J 



2 Laomedea gelatinosa, natural size and magnified ... 39 



11 1 Campanularia volubilis 40 



2 Magnified view of Campanularia syringa, (not dtimosa) 14 



3 Campanularia intertext a, of the natural size and magnified 41 



4 Campanularia verticillata 42 



12 1 Gorgonia verrucosa of the natural size with a frag- 7 55 



ment of Gorgonia placomus, No. 2, on the stone . § 56 



3 Two states of Caryophyllia Smithii 72 



13 1 Alcyonium sanguineum of the natural size GO 



2 Alcyonium digitatum 58 



14 1 A group of Actinia mesembryantheinum 74 



2 A group of Anthea ceieus 81 



15 1 §• 2 Old and young specimens of Actinia parasitica ... 80 



3 Zoanthus Couchii in different states of expansion . . 73 



16 1 Lucernaria Auricula; 2 its month; 3 its foot ... 63 



4 Serialaria lendigera, natural size and magnified ... 94 



5 Sertularia pumila 19 



6 Valk eria uva, growing on No. 5 95 



17 1 Vesicularia spinosa, magnified and natural size ... 94 



2 Valkcria imbricata, magnified and natural size ... 95 



3 Valkeria cuscuta, magnified and natural size ... 96 



4 Crisia cornuta, magnified and natural size. The magO 



nified figure on the right hand is the common formf „_ 

 in which it occurs, that on the left is very rare andf 



may prove a distinct species 3 



