Rig, 1 
Fig. 2 
Fig. 3 
Big. 4 
Bic, #5. 
Fig. 6. 
Fig. 7 
Fig. 8 
Fig. 9 
Fig. 10. 
Fig. 11. 
Fig. 12 
Fig. 13 
Fig. 14 
Fig. 15 
Fig. 16. 
Fig. 17. 
PLATE XL. 
Figs. 1-4. Mrracrinus cINGULATUS, n. sp. 
. Portion of the stem, 
. Upper face of a nodal joint, 
. An internodal joint, 
. Side view of a brachial ambulacrum, 
Figs. 5-11. Mrracrinus NOBILIS, n. sp- 
Portion of the stem, 
Upper face of a nodal joint, 
. An internodal joint, 
. An internodal joint of a small specimen, 
. One of the distichal pinnules, 
One of the outer pinnules, 
The arm-eroove and brachial ambulacrum, 
Figs. 12-17. METAcRINUS MURRAYI, 0. sp 
2. The lower part of a pinnule-ambulacrum, 
. Side view of a brachial ambulacrum, 
. An arm-groove and brachial ambulacrum, 
. Portion of the stem, 
Upper face of a nodal joint, 
An internodal joint, 
Diam. 
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