[ 8 s 2 3 
near Leghorn, on the coaft of Italy. It is not im- 
probable, but that thefe groups of Barnacles, grow- 
ing at the fame time with the animals that formed 
the red coral, may have received an addition to theiF 
fine red colour from the coral. 
Fig. 1 1. is a group of Barnacles of a conical form, 
compofed of purplifh tubes like fmall quills. Fig. 
11. a reprefents one of the fame, with a view of its 
bafe, from the collection of Mr. Peter Collinfon, 
F. R. S. This was brought from the Eaft Indies. 
The infides of thefe fhells have the appearance of 
the fpongy parts of bones. 
Fig. ] 2. is called the Tortoife-wart Barnacle, being 
often found upon that animal. This fhell is of a 
plano-convex fhape, and looks like polifhed ivory. 
The divifions between the valves reprefent a ftar with 
fix points. If thefe fhells are put into foap lees, they 
will in a few hours feparate into fix pieces or valves, 
each fhelly valve having two ears, like the fcallop- 
fhell : fo that this fpecies has its valves connected by 
membranes, inftead of teftaceous futures, as moft 
of the others have. Fig. 12. a reprefents the under 
part of the fame fhell. 
Fig. 13. This fhell is marked with fix rays like a 
ftar, as the former ; but is much deeper in propor- 
tion to its diameter. Several of this kind were found 
flicking to a crab, that was lately brought from the 
ifland of Nevis ; from whence I have called it the 
American Crabs-wart. 
Fig. 14. is called the Side-mouth Barnacle. This 
was found on the fouthern coaft of Africa, near the 
Cape of Good Hope, where it adheres to a particular 
fpecies of ftriated purple mufcle. Fig. 14. a repre- 
fents 
