196 MR.J.¥Y. JOHNSON ON NEW MADEIRAN CoRALs. [June 24, 
consist of fibres bearing a general similarity to those composing the 
axis of Antipathes. Round the orifice of each cell project large 
spicula, and smaller spicula strengthen the sides of the cells and the 
bark. The spicula are intermediate in character between those of 
A. hirsuta and A. grayi, being less slender than those of the first 
species, and less stout than those of the second. The great spicula 
round the mouth of the cell have their exposed portions spinulose or 
tuberculated (not smooth as in A. hirsuta) ; their bases are branched 
(as in A. grayi), and they are much less marked with the tubercules 
which roughen the bases of the last-named species so remarkably. 
This species is distinguishable from the other two by the greater 
crowding of the cells, by the cells themselves being sessile and being 
therefore less prominent, by the paucity of the ramifications, and by 
the differences in the spicula already pointed out. In habit it is 
very distinct. 
The specimen (which is now in the British Museum) has a height 
of 13 inches, and its branches have a spread of about 11 inches. 
The stem, with its cells, has a diameter of 3,5; of an inch, and the 
branches with their cells are only reduced to two-thirds of that dia- 
meter. Near the base are the stumps of two branches which have 
been broken off. Above, on one side, are two simple branches, and 
on the other a single forking branch. These three branches are 
placed not far apart near the middle of the main stem. 
It ought to have been mentioned, with reference to the woodcuts 
of A. grayi and A. hirsuta (Proc. Z. S. 1861, p. 297), that the 
figures are considerably larger than the natural size. 
Fam. STYLASTERIDZ. 
ALLOPORA MADERENSIS, Sp. 0. 
Opake white. Much and closely branching nearly in one plane, 
the branches becoming gradually of less diameter, and sometimes 
anastomosing. They zigzag from cell to cell; and the surface is 
finely reticulato-striate, but is without any tubercles. The cells are 
oblong, sessile, and always placed transversely to the branch, upon 
one face of the plane. The terminating cells, with their pedicels, are 
trumpet-shaped, but with oblong mouths, which are much wider than 
the stalk below. The margin of each cell is elegantly notched with 
from twelve to sixteen notches, with laminz between. 
The dimensions of the single specimen that has occurred (now in 
the British Museum) were 3} inches high and 21 inches across. 
The base had been broken away, and the thickest part of the remain- 
ing stem was 1th of an inch in diameter. The longer axis of the 
terminal cells measured the twentieth of an inch. 
The specimen was brought up by a long fishing-line on the coast 
of Madeira. Two examples of that curious patelliform shell the 
Pedicularia sicula were found seated on the branches. With re- 
spect to this circumstance, I may mention that Mr. S. P. Woodward 
has shown me a coral from the coast of Sicily, belonging to a totally 
distinct genus, with Pedicularie upon it; and in the Coral Room 
