CLASS POLYPI. 
FAMILY MILLEPORAD/A. 
GENUS LUNULITES. Lamarck. 
Lanulites Bouéi.* Plate 6. Fig. 202. 
Description. Lunulites convex and cellular above, con- 
cave and rugosely radiate below ; cells in rows, diverging 
from the apex; pores very minute, being placed between 
the lines of cells. 
Diam. .3, Height 3-20ths, of an inch. 
The segment is a magnified view. 
Observations. This species, certainly, very closely re- 
sembles the uwrceolata (Lamarck). The cells of that spe- 
cies, as figured by Goldfuss, are more round than in ours. 
I had observed, by the aid of the microscope, that each 
specimen, at the apex, was possessed of a grain of quartzose 
sand, in some cases covered over. On examination, I 
found this had been observed by Brogniart and Goldfuss, to 
be the case with the urceolata; but this curious fact does not 
* Named after the distinguished geologist, Dr Boue. 
