PLATE X. 
The same Letters occur in both Figures. 
br. The plug of calcareous tissue in the centre of the radial funnel, which was called a basal rosette by Sars. 
vrf. The ventral radial furrows of the calyx. 
Figs. 1, 2. Ru1zocRINvs LOFOTENSIS, Sars. 
Two views of a calyx with three of the first brachials remaining 7 situ. 
Diam. Page 
Fig. 1. From above, : . ; ; : - was 252 
Fig. 2. From the side, : 5 : : ; . Oo 266 
Figs. 3-20. Ruizocrinus RAwsONI, Pourtalés. 
Fig. 3. Calyx of a specimen from near the Azores; side view, eae 1100) 267 
Fig. 4. The same from above, : ; ee Ka 250 
Fig. 5. The same from below, : x 15 25 
Fig. 6. Calyx of a specimen from off pes with the first iearhials 
remaining in situ; from above, . F 2) x 16 254 
Fig. 7. A similar view of the calyx of another co specimen which 
has undergone reparation. All the first brachials are 
visible and four of the small second brachials; while the 
centre of the cup is occupied by the oral plates, . x 10 255 
Fig. 8. Calyx of another specimen from the Azores with the first 
brachials attached ; from above, . . ; eae 0 255 
Fig. 9. Upper face of the top stem-joint of the Azores bislimesy repre- 
sented in figs. 3-5, ; é - Se aS 25 
Fig. 10. Upper face of the fourth joint of Ae same stem, : xo 15 25 
Figs. 11,12. Terminal faces of two joints from rather above the midllle 
of the stem ; fig. 12 representing that nearer the calyx, . x 15 26 
Figs. 138, 14. Terminal faces of two joints from the lower part of the 
stem ; fig. 13 representing that nearer the root, . » 6. SS 26 
Fig. 15. The root of a specimen from Havana, 4 ~ xia 257 
Fig. 16. Two stem-joints with attached Forasnmniven (Truncatulina 
lobatula), E : ‘ . , 5 os SO 134 
Fig. 17. Proximal face of an epizygal at an arm-syzygy, ; 5 ee le 254 
Fig. 18. Distal face of the corresponding hypozygal, . : xl 254 
Fig. 19. Dorsal view of the second and two following brachials, to dow 
the backward projection of the proximal face of the second 
brachial (an epizygal), x le 254 
. 20. Side view of the upper part of the disk, tee rarhoval of one 
arm. The arms have separated from the cup at the syzygy 
between the first and second brachials, . : o) Sak aegis 255 
