de 3 
cel. can. 
cu 
ect. m. « 
end. . 
und. m.. 
Figure 
PLATE VIII. 
LETTERING ON THE FIGURES. 
basal canal. end. sph. 
canals. gl. 
cell -islets. imp. mes. . 
celenteric canals. iner. 
cuticle. Mae 
ectoderm. p.b.m. 
ectodermal muscle. sph... 
endoderm. 8. CU. 
endodermal muscle. t 
Zoanthus Shackletont, n. sp. 
endodermal sphincter muscle. 
unicellular glands. 
imperfect mesentery. 
incrustations. 
mesoglea. 
parieto-basilar muscle. 
sphincter muscle. 
sub-cuticula. 
tentacle. 
1. Longitudinal section through the body-wall, showing the contorted subcuticula, x 70. 
2. Vertical section through the sphincter muscle, showing the large proximal or lower sphincter, and 
the small distal or upper sphincter, x 35. 
8. Transverse section through the proximal portion of a perfect mesentery to show the large basal 
canal, x 75. 
Qo nm ff 
Gemmaria Canariensis, n. sp. 
- Vertical section through the sphincter muscle, x 24. 
. Vertical section through the ccenosare, x 24. 
Palythoa Gregorit, n. sp. 
. Transverse section through a portion of the body-wall just below the level of the esophagus, x 35. 
7, Semi-diagrammatic vertical section through the sphincter muscle. Only the mesoglea is 
represented in the figure, x 75. 
ioe} 
ie) 
Epizoanthus egeri@, n. sp. 
. Vertical section through the sphincter muscle, x 24. 
Corynactis Australis, n. sp. 
10. Vertical section through the sphincter muscle, x 75. 
. Transverse section through the body-wall and the bases of two mesenteries, x 75. 
[ Corynactis viridis, Allman, West of Ireland. 
11. Vertical section through the sphincter muscle of an expanded polyp. | 
[ 168 ] 
