68 BULLETIN OF THE 
Fig. 10b. The same. Spicula from the inner part of the cenenchyma: e, one of 
the short rough spicula; 7, one of the club-shaped forms; g, one of 
the larger fusiform spicula. Enlarged 150 diameters. 
PLATE IL 
Fig. 1. Stenogorgia casta V. Part of a specimen. Natural size. 
“ la. The same. Part ofa branch. Enlarged 4 diameters. 
“ 1b. The same. Spicula: c, d, longer and shorter fusiform spicula; e, a slen- 
der fusiform spiculum from the polyps. Enlarged 75 diameters. 
“ 2. Primnoa Pourtalesii V. One of the branches. Natural size. 
“ 2a.The same. Twoof the calicles. Enlarged 24 diameters. 
“ 2b,2c. The same. Two of the scales from the sides of the calicles. En- 
larged 75 diameters. 
« 2d. One of the opercular scales. Enlarged 75 diameters. 
“ 2e. One of the scales of the cenenchyma. Enlarged 75 diameters. 
“ 3. Lunicella gracilis V. Part of abranch. Enlarged 4 diameters. 
a, one of the club-shaped spicula of the external layer; 5, one of the long 
fusiform spicula of the coenenchyma, inner portion ; c, one of the double- 
headed forms. Enlarged 150 diameters. 
“ 4, Dasygorgia Agassizii V. Asegment of the stem witha branch. Enlarged 
2 diameters. 
“ 4a. The same. One of the calicles. Enlarged 24 diameters. 
“4b. The same. Spicula. Enlarged 150 diameters. 
“ 6. Dasygorgia spiculosa V. One of the terminal calicles with the distal part 
of a branchlet showing the great development of the spicula. Enlarged 
12 diameters. 
“ 6. Chrysogorgia DesbonniD.& M. One of the calicles from a West Indian 
example. Enlarged 12 diameters. 
6a,6b. The same. Two of the spicula of the cenenchyma. Enlarged 75 
diameters. 
7. Iridogorgia Pourtalesii V. One of the calicles and segment of a branch 
from the proximal portion. Enlarged 6 diameters. 
7a. The same. Two of the largest spicula of the calicles. Enlarged 50 
diameters. 
cal 
n 
- 
a 
- 
a 
PLATE III. 
Figs. 1, 1a, 1b. Acanthogorgia armata V. Three branches, all from the same 
specimen, showing the extreme variations in the form of the calicles. 
Enlarged 4 diameters. From an alcoholic specimen. 
“2. The same. Terminal branches of a normal specimen. About one half 
natural size. 
“ 2a. The same. One of the calicles, from a dried specimen. Enlarged 4 
diameters. 
“ 2b. The same. Spicula: c, d, e, spines from the margin and upper part of 
the calicles ; f, g, two fusiform spicula from the cenenchyma. Enlarged 
22 diameters. 
