201 
Plate XV. Fig. 7, is part of the mass belonging to the superior part 
of the animal, which is proved by the body part, or pelvis, being 
imbedded in it, and being surrounded by a confused mass of minute 
ossiculae, which had formed the arms, fingers, &c. of the animal. As 
in the skeleton of the body part of the other encrinites, so we find in 
the skeleton in this specimen, that the first of the vertebrae is sur- 
, rounded by five bony plates, which, in the account given of the 
preceding species, were considered as ribs : but the similarity of 
structure ceases here, the remaining parts of the skeleton being es- 
sentially different. 
Each of the ribs, viewed externally, the only view which I have 
hitherto obtained of them, presents a roundish flattened surface, 
terminated by six articulating edges. The first of these, the inferior 
concave edge, is that which surrounds the external surface of the 
first vertebra. This edge is on a line which forms the fifth part of 
the internal and smaller circle of the pelvis. Opposite to this, is the 
exterior convex edge, on which the compound clavicle of this species 
articulates ; this edge forms also the fifth part of a circle, but is 
necessarily larger than the former, as it includes the more external part 
of the pelvis. 
The ends of each rib terminate in two obliquely disposed edges, 
forming the articulation by which the ribs themselves are connected 
together. By a truncation, as it were, of the angle resulting from the 
edge just described, and of the superior edge, an oblique edge is 
formed, which, with that on the corresponding part of the adjoining 
rib, leaves a triangular cavity immediately over the commissure of the 
ends of the ribs. In this triangular cavity is placed the inferior 
termination of an oblong body, which appears to have had an analogous 
office with that which was considered as the scapula in the lily encrinite ; 
since to its superior part, the arms, fingers, &c. of the animal appear 
to have been attached. 
Between each of these five scapulae, and on the superior edges of the 
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