510 Miscellaneous. 
several directions by the folds of the impression of the animal. Al- 
though neither head nor tail can be detected, and this Annelide 
is consequently far from being entire, these convolutions correspond 
to a length of about 2°20 metres. 
The body appears to have been about 0-04 metre broad; its segments 
are thick. At some places there are externally some indentations, 
which appeared to me to have arisen rather from some folds of the 
body than from true feet. The smooth outline of the greater portion 
of the impression leads me to think that this Annelide was apodous. 
Within the segments of the body the interannular dissepiments are di- 
stinctly visible ; they are as close together as in our large species of 
Eunices. These imperfect septa do not reach the intestine. The 
space separating them communicates with the general cavity of the 
body, which is perfectly distinct. In the centre of this cavity is seen 
the intestine, which is free and extends the whole length of the 
body. It varies in diameter generally from 0:005 to 0°009 metre. 
It is folded transversely, and these folds have nearly everywhere an 
imbricated appearance ; but at some points where this intestine is 
distended transversely, and where it has acquired almost 0°015 metre 
in diameter, these folds are seen not to reach from one side of the 
intestine to the other, and form rhomboids. 
The common cavity of the body evidently contained no other organ. 
This circumstance consequently removes this Annelide from the Luwm- 
brici, the Hirudines, and the Nemertes. It appears probable to me, 
that the existing group to which it comes nearest is that of the Anne- 
lides Errantes. 
The number of fossil naked Annelides is very small. None of the 
specimens known furnish any idea of the anatomy of these ancient 
inhabitants of the primitive oceans. On this account the specimen 
from the bay of St. Sebastian appears to me of considerable import- 
ance.—Ann. des Sci. Nat., Nov. 1849. 
Description of a new species of Gorgonia from Australia. 
By J. E. Gray, Esa., F.R.S. 
PRIMNOA AUSTRALASIE. 
Coral elongate, unbranched, rather tapering ; cells numerous, re- 
gular, placed in close regular circles round the stem, each formed of 
two series of imbricate calcareous scales. 
Inhab. Australasian seas, on oyster-shell and stones. 
Several specimens of this very interesting coral were sent to the 
British Museum by the Royal Society of Van Diemen’s Land. 
This coral is often covered with various species of smaller Coral- 
lines and Alge. It varies from two to three feet in height. The 
axis is known from the unbranched species of Gorgonia by being more 
calcareous, and of a pale greyish colour. 
Joseph Millingin, Esq., F.L.S., the Secretary of the Royal Society 
of Van Diemen’s Land, has kindly sent me the following particulars 
of this coral :— 
“Tt was fished up from a depth of some fathoms in D’Entrecas- 
teaux Channel, between the mainland of Tasmania and Bruce’s Island. 
It is found, as you will see, affixed to rocks and stones, and to dead, 
