204: HISTORY OF BRITISH ZOOPHYTES. 
slender and cylindrical. It has eight tentacula surrounding | 
an oval disc. They are pinnate (the pinnee about twenty 
on each side, and crenate) and retractile within a sheath, 
the margin of which is strengthened by interlacing spicula, 
forming triangular, bristling, tooth-like lobes, which alter- 
nate with them. The tentacula are pale pink, and formed 
of a granular tissue. Below the oval circle the body is 
cylindrical, and marked by eight rose-coloured lines, and at 
about half its height it dilates into a broad bottle-shaped 
base, within which are seen the bright red ovaries. The 
base gradually passes into the investing skin of the rod, of 
which the sheath of the polype and its teeth may be re- 
garded as an extension. 
«When irritated, the Pavonaria gives out a vivid bluish 
light, which is brightest towards the tip. The light appears 
to come from the bases of the polypes, and to be connected 
with the reproductive system.” 
Famity GORGONIADA. 
‘Great Ocean! strongest of creation’s sons, 
Unconquerable, unreposed, untired, 
That roll’d the wild, profound, eternal bass 
In Nature’s anthem, and made music such 
