FOSSILS OF THE FIRESTONE. 
IG5 
tliat have not, I believe, been found in any other 
bed. One of these is the Oatrea carmata^ figured 
in Wliite’s Natural History of Selborne, and which 
has been found at Southbourn ; and a species of 
ammonite, A. planulatus. 
AMMONITES PLANULATUS, FROM THE FIRESTONE, SOUTHUOURN. 
The Grpphcpa vesiculosa occurs at Nursted and 
Amberley ; and an echinus, named by Mr. Kdnig, 
in honour of jMrs. IMurchison, the higldy talented 
lady of the late president of the Geological Society 
of London. The most interesting fossil is, how- 
ever, a species of fucus, which I observed in 
the stone on the road-side near Bury, on my first 
visit to the Roman villa at Bignor, soon after the 
discovery of that splendid remain of antiquity, and 
with beautiful specimens of which, I have been sup- 
plied through the kindness of iMr. Hawkins. This 
fucus is figured by M. Adolphe Brongmiart, in his 
Vegetaux Fossiles, under the name of Facoides 
Fargiojiii : wood, and the claws of a species of 
astacus, also occur. 
M S 
