PLATE XVII. 
Fig. 1. Part of a nave encrinite, with a circular central opening, the carpal bones* of 
which much resemble those of the specimen, Fig. 10, taken from Dr. Capeller’s 
plate. 
2. Part of another encrinite, differing from the former in the size and form of its 
plates, and in having a stellated central opening. 
3. The nave encrinite. This figure was taken from the original specimen in the 
British Museum. The opening at the superior part I believe to be the effect 
of injury. 
4. Part of another encrinite, which seems to have very much resembled the preceding 
specimen. 
o. Part of another encrinite, which appears to have much resembled the two former 
specimens. 
6. A vertebral column of a pentacrinite, from Yorkshire. 
7. A vertebral process, or appendix, of the Gloucestershire pentacrinite. 
8. A part of the vertebral column of the Gloucestershire pentacrinite. 
9. The superior extremities of the pentacrinite in an extended state. 
10. A sketch of an encrinite, taken from Fig. 3, of a plate -of Dr. Capeller. 
11. A part of the vertebral column of a pentacrinite, supposed to be from York.shire. 
12. The superior part of an encrinite, in the British Museum, from Ireland. 
13. One of the ossiculm of the arms of the pentacrinite, of its natural size, and slightly 
magnified. 
14. One of the ossiculae of the vertebral processes, of the natural size, and slightly 
magnified. ' 
15. The superior part of the briaraean pentacrinite. 
a, the scapulae, 
i, the clavicle. 
c, the first bone of the arm. 
rf, the second bone of the arm. 
c, the commencement of two series of bones, attached to the superior part 
of the last bone of the arms, analagous with what has been seen to take 
place in most of the encrinites. 
16. The vertebral column of the briaraean pentacrinite, with the articulated vertebral 
processes. 
17. The termination of one of the vertebral articulated processes, slightly magnified. 
* The propriety of the term carpal bones will appear when the forms of these bodies are 
attended to, and especially when it is observed that these bones, like the carpal, connect 
the fingers with the arm. 
VOL. II. 
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