115 
nites and of the column number 8, below. Mr. Parkinson represents a sin- 
gle columnar joint of this Crinoid in his Org, Remains, Vol.1. t. 13, fig. 69. 
Douirormis would be a good specific name after ascertaining the genus to 
which it belongs. ve 
4. Crinoidal column (fig. 10. and 11.) formed of moniliform joints alter- 
nately larger and thicker, articulating by a striated rim, having a central round 
alimentary canal. A few small auxiliary side arms proceed from the larger 
joints. Locality unknown, apparently Mountain limestone. 
5. Portion of a crinoidal auxiliary side arm, (fig. 12. and 13) formed of 
thin joints, articulating by a radiating rim, and in one instance a series of 
them, each terminating in a tubercle on one end of the longest diameter. 
From the Mountain limestone at the Mendip Hills. | 
6. Portion of a crinoidal auxiliary side arm, (fig. 14. and 15.) whose joints 
are of equal thickness, articulating to each other by striated surfaces. The 
external circumference shows a series of tubercles surrounding each joint, and 
several folds the vestiges of muscularity. From the Derbyshire Mountain 
limestone, and also figured in Marrtin’s Pet. Derb. t. 4. fig. 10. ~ 
7. A nearly round, remarkably smooth, pentacrinal column, (fig. 7 and 8.) 
formed of joints swelling out at their point of articulation to each other. This 
might be easily mistaken for an auxiliary side arm of Actinocrinites, were it not 
for the pentapetalous semi-striated articulation. I feel inclined to consider this 
column as appertaining to a pentacrinite, claiming a specific distinction, and 
should propose for its name Penracrinites Levis. Locality unknown ; 
probably lias. 
8. Acrinoidal column, formed of moniliform joints, articulating by surfaces 
striated near the circumference. (fig. 9.) I never saw the superior portion 
of this crinite sufficiently perfect to display the pelvis and plates resting on it 
A slab in the possession of Mr. R. Bricur, from the transition limestone on 
his estate, near the Malvern Hills, shows some fingers of this species. Mr. 
G. Hawker has also a specimen from Dudley, showing the column and 
several fingers ; and Mr. C. Sroxes has transmitted me the drawing of a nearly 
similar specimen from the same place. From the analogy of these fingers to 
those of Actinocrinites triaconta dactylus and some other characters, I feel 
