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, 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
Figs, 
I §• 2 
3 
1 
3 
l 
2 
1 
2 
3 
4 
1 
3 
1 
2 
1 
2 
1 §-2 
3 
1 
4 
5 
6 
1 
2 
3 
4 
Different appearances of Cory lie Sqnamata . . . . 
Herraia glamlulosa, magnified and of the natural size . 
Tubularia indivisa; 2 its polype 
The polype of Tubularia larnyx 
Part of a fine specimen of Thoa haleeina 
Thniaria arlicnlata, of the natural size and magnified ) 
to show the cells and ovarian vesicles .... t 
Thniaria thiiia in different stages of growtli and a> 
portion magnified $ 
Sertularia nigra, natural size aud magnified, laden ) 
with ovarian vesicles i 
Showing different modes of growth of Antenmilaria \ 
anlennina, S 
Plunmlaria cristata in two forms of growth, with a ) 
magnified view of the cells and ovarian vesicle . £ 
Plunmlaria myriophyllum . . . 
Laomedea genieulata of the natural size and magnified, T 
showing the cells and their polypes, with ovarian f 
vesicles, and near the lower part a diagram showing f 
the funnel shaped opening iu newly formed cells . ) 
Laomedea gelatinosa, natural size and magnified . . . 
Campauularia volubilis 
Magnified view of Cainpanularia syringa, (not duinosa) 
Campauularia intertcxla, oftho natural size and magnified 
Cainpanularia verticillata 
Gorgonia verrucosa of the natural size with a frag-? 
meut of Gorgonia piucomiis, No. 2, on the stone . $ 
Two states of Caryophyllia Smith'd 
Alcyoniunt sanguineum ot llie natural size ..... 
Alcyonium digitatum 
A group of Actinia mesembryanlhemum 
A group of Antiiea ceretis . • • • • • ■ • • . . 
Old and young specimens ot Actinia parasitica . . , 
Zoanthns Coucbii in different states of expansion . . 
Lucernaria Auricula; 2 its mouth; 3 its foot . . . 
Serialaria lendigera, natural size and magnified . . . 
Sertularia pumila • 
Valkeria nva, growing on No. 5 ..... . . . 
Vesicularia spinosa, magnified and natural size . . . 
Valkeria imbricata, magnified aud natural size . . . 
Valkeria cuscuta, magnified and natural size . . , 
Crista eornuta, magnified and natural size. The raag-V 
nified figure on the right hand is the common form f 
in which it occurs, that on the left is very rare an'df 
may prove a distinct species • J 
page. 
11 
12 
13 
13 
15 
23 
27 
20 
29 
31 
36 
38 
39 
40 
14 
41 
42 
55 
56 
72 
60 
58 
74 
81 
80 
73 
B3 
94 
19 
95 
94 
95 
96 
97 
