116 FOSSIL FAUNA. 



PLATE X.'LYIII.— continued. 



Fig. .3. The Lily Encrlnite, detached from its vertebral column. 



a, the centre of its base, formed by five cuneiform ossicula, or ossa innominaia. 



a, one of the ossa innominata detached. 



b, the ribs, or articuli trapezoides ; forming, with the preceding bones, the 



pentagonal base. 



b, one of the ribs detached, showing its internal surface. 



c, the clavicles. 



c 1, the interior surface, 

 c 2, the superior surface. 



d, the scapulae. 



d 1, the inferior surface, 

 d 2, the superior surface. 



e, the arms. 



f, the two first bones of the arms united. 



a, h, i, k, I, m, the bones of the fingers gradually diminishing. 



Fig. 4. Part of the supposed base, or organ of attachment, of the Lily Encrinite. 

 Fig. 5 . The supposed base, or organ of attachment, of the ' Gap Encrinite.^ " 



