PLATE IX. 



Granatocrinus Derbiensis, G. B. Sby., sp., p. 250. 



Page 

 Fig. 1. lnterradial view, showing the enormously large deltoid plates and the position 



of the nearly horizontal radio-deltoid suture. Carboniferous Limestone, 



Lancashire. x 4 125 



Fig. 2. lnterradial view of a rather more globose variety, in which the radial plates are 



larger and the radio-deltoid suture higher. x 4 12 



Fig. 3. Inferior aspect of the same specimen, with the converging apices of the ambulacra, 



the whole of the radial plates exposed to view, and the central depression. x 5 . 15 

 Fig. 4. A similar view of another example, with shorter ambulacra, the racial plates 



smaller, and the calyx more highly ornate 12 



Fig. 5. Portion of a summit view, showing the spiracles, with the thickened prominences 



at their outer margins. x 6 107 



Fig. 6. A still more globose variety seen in interradial view, with a very low radio-deltoid 



suture. x4 29 



Fig. 7. Portion of an ambulacrum with the side plates removed. x 20 57 



Granatocrinus campanulatus, McCoy, sp., p. 251. 

 Fig. 8. Summit view of a very young specimen, with a highly ornate calyx and very large 

 prominences at the distal edges of the spiracles. Carboniferous Limestone, 



Lancashire. x 4 107 



Fig. 9. Inferior aspect of another specimen, showing the broad flat base. x 4 ... 12 

 Fig. 10. lnterradial view of the same individual. x 4 252 



Granatocrinus orbicularis, G. B. Sby., sp., p. 248. 

 Fig. 11. Interradial view, showing the inflated calyx, arched ambulacra, and the position of 



the radio-deltoid suture. Carboniferous Limestone, Lancashire. x2 . . 11 



Fig. 12. A similar view of another and higher calyx, with the radio-deltoid suture straighter. 



x3 25 



Fig. 13. Inferior aspect, showing the converging ambulacra, the wide and shallow central 



concavity, and the basal disc. x 2 15 



Fig. 14. Summit view with the lancet-plate exposed, and the constricted central ends of the 



deltoids well shown. x 5 107 



Fig. 15. A similar view of another example, with the constricted ends of the deltoids larger, 



and the spiracles somewhat smaller. x 5 107 



Fig. 16. Portion of an ambulacrum, showing the median groove of the lancet-plate, and the 



side plates partially removed on the right. x 20 60 



