69 
ADDENDA. 
== 
Besides the Pentacrinites described, I have met with columns and fragments. 
of animals belonging to this genus, but indicating plainly that they havea claim 
to specific distinction. Not having, however, sufficiently perfect specimens to 
enable me to draw up a specific character, I shall confine myself to a short des- 
cription of as much as has come under my observation. 
IV. SPECIES. PENTACRINITES BASALTIFORMIS. 
BASALTIFORM FIVE ANGLED LILY-SHAPED ANIMAL. 
Reference and Synonymes. 
"PARKINSON'S Org. Rem. vol, 11. tab. 13. fig. 54. 
Locality. 
In Lyas—at Lyme, also in the Chalk near Lyme. 
Description. 
iam አንት with the column (see Pr. n. of P. Subangularis, 2 1. to 6.) 
alone of this species, which is peculiarly neat and slender, formed inva- 
riably ۶ Joints of an uniform size and thickness, sending off at intervals 
from fifteen to twelve (fig. 6.), and probably less near the pelvis, round auxi- 
Jiary side arms. 
In an early state of growth (fig. 2.) when the space between the oval petal- 
cuam! secretions is muscular, e illustrate my views with regard to a gra- 
